JP5454771B2 - Performance learning apparatus and program - Google Patents

Description

  The present invention relates to a performance learning apparatus and a program for correcting a mistake of a user who plays a song and improving a practice effect.

  Based on the song data indicating the pitch to be sounded and the sounding timing, the LED arranged on the key of the pitch to be sounded among the LEDs (light emitting elements) provided on each key of the keyboard is used as the sounding timing. There is known an apparatus for guiding a key to be played to a performer by lighting it correspondingly. As a device of this type, for example, Patent Literature 1 discloses a teaching form in which reading of music data is stopped until the guided key is depressed when the guided key is not depressed even after the sounding timing has passed. , A device that is used as a learning form for fast-forwarding song data until the sounding timing when a key guided before the sounding timing is pressed, that is, a device that changes the learning form according to the keying timing of the key to be played is disclosed. Yes.

JP 2000-206965 A

  By the way, in the beginner user who is not familiar with music, even if it is the teaching form disclosed in the above-mentioned Patent Document 1, since it is dedicated to pressing the guided key, the same performance mistake at the same location (sound) every time. May be repeated, and as a result, a habit of performing the wrong performance may occur. That is, in other words, there is a problem that it is not possible to improve the practice effect by correcting the wrong habit of the user who plays the song.

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a performance practice device and a program that can improve a practice effect by correcting a mistake of a user who plays a song.

  In order to achieve the above object, according to the first aspect of the present invention, a musical piece data storage means for storing musical note data representing each sound constituting a musical composition, and a musical composition according to the musical note data stored in the musical note data storage means. The first guide means for guiding the performance of each sound to be performed, the performance data generated by the user's performance operation corresponding to the guide by the first guide means, and the musical note data of the guided sound are compared. A first determination means for determining the presence or absence of a mistake, and occurrence of a performance error item corresponding to the note data of the sound determined by the first determination means that a performance error has occurred and corresponding to the content of the performance error Counting means for counting the number of times, and the number of occurrences for each performance error item counted by the counting means is calculated based on the result of counting for each note data of each sound constituting the music. And extraction means for extracting performance mistake items that are likely to occur with the sound, and the first means after extraction of performance mistake items that are likely to occur with the sound and extraction of the performance mistake items that are likely to occur with the sound. Second determination means for comparing the performance data generated by the user's performance operation corresponding to the guide executed by the guide means and the note data of the guided sound to determine whether or not there is a performance error; and If the sound determined that the performance error has occurred matches the performance error item that is likely to occur in the performance error winning sound extracted by the extraction means, the note data of the performance error winning sound And a second guide means for repeatedly guiding the performance of a predetermined number of times.

  In the invention according to claim 2, which is dependent on claim 1, the extraction means performs note data having performance error items having the maximum number of occurrences and a predetermined number of times or more out of the number of occurrences of performance error items. It is characterized in that it is extracted as a performance error item that is likely to occur in a mistake-winning sound.

  In the invention according to claim 3, which is dependent on claim 1, the second guide means has a point in time when performance data corresponding to the sound determined to have caused a performance error by the second determination means is generated. A period setting means for setting a predetermined time width before and after the repetition practice period, and after performing a predetermined number of repetitions of the performance of the musical note data of the performance mistake in the repetition practice period set by the period setting means, And a restart instruction means for instructing one guide means to resume the guide.

  In the invention according to claim 4 subordinate to claim 1, the repeated practice determining means for determining whether or not the user's performance operation corresponding to the repeated guide by the second guide means is appropriate, and this repetition It is further characterized by further comprising practice number control means for causing the second guide means to repeat the guide from the beginning when it is judged by the practice judging means that an erroneous performance operation has been performed.

  In the invention according to claim 5 that is dependent on claim 1, a weighting coefficient that differs according to the degree of influence on the music performance is assigned in advance to each performance error item, and the second determination means determines whether a performance error has occurred. When the sound determined to have occurred matches a performance error item that is likely to occur in the performance error winning sound extracted by the extraction means, the weighting factor assigned to the performance error item that is likely to occur is referred to above. It is further characterized by further comprising a number instructing means for varying the number of repetitions instructed to the second guide means.

  In the invention according to claim 6, the first guide step for guiding the performance of each sound constituting the music according to the note data representing each sound constituting the music, and the guide by the first guide step. A first determination step for determining whether or not there is a performance error by comparing performance data generated by a corresponding user performance operation and the note data of the guided sound, and a performance error occurs by the first determination step. A counting step for counting the number of occurrences of performance error items corresponding to the content of the performance error, and the number of occurrences for each performance error item counted in the counting step. An extraction step for extracting the performance mistakes in the music based on the result of counting for each note data of each sound constituting the music and the performance error items likely to occur in the sound; The performance generated by the user's performance operation corresponding to the guide executed by the first guide step after the extraction step extracts the performance mistakes in the song and the performance mistake items likely to occur in the sound. A second determination step of comparing the data and note data of the guided sound to determine the presence or absence of a performance error, and the sound determined to have a performance error as a result of the second determination step is the extraction step. A second guide step that repeatedly guides the performance of the musical note data of the performance mistake winning sound when it matches the performance error item likely to occur in the performance mistake winning sound extracted by It is characterized by.

  In the present invention, it is possible to correct the mistakes of the user who plays the music and enhance the practice effect.

It is a block diagram which shows the structure of the performance learning apparatus 100 by one Embodiment. 3 is a memory map showing a memory configuration of a RAM 14; It is a figure which shows the structure of the note data stored in the music data area MDE of RAM14. It is a figure which shows the structure of the performance data stored in the performance data area PDE of RAM14. It is a flowchart which shows operation | movement of a main routine. It is a flowchart which shows operation | movement of a production | generation process. It is a flowchart which shows operation | movement of a switch 1 process. It is a flowchart which shows the operation | movement of a guide 1 process. It is a flowchart which shows the operation | movement of a keyboard process. It is a flowchart which shows the operation | movement of an analysis process. It is a flowchart which shows the operation | movement of an analysis process. It is a flowchart which shows the operation | movement of an analysis process. It is a flowchart which shows operation | movement of practice processing. It is a flowchart which shows operation | movement of a switch 2 process. It is a flowchart which shows the operation | movement of a guide 2 process. It is a flowchart which shows the operation | movement of a guide 2 process. It is a flowchart which shows operation | movement of a control process. It is a flowchart which shows operation | movement of a control process.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
A. Configuration FIG. 1 is a block diagram illustrating a configuration of a performance learning apparatus 100 according to an embodiment. In this figure, the keyboard 10 generates performance information such as a key-on / key-off signal, a key number, and velocity in accordance with a performance operation (press / release key operation). The switch unit 11 has various operation switches arranged on the device panel, and generates a switch event corresponding to the switch type operated by the user. The main switches arranged in the switch unit 11 include, for example, a mode switch for setting an operation mode (a generation mode, a practice mode, and a clear mode, which will be described later), and a start / stop switch for instructing start / stop of a guide. Etc.

  The CPU 12 controls each part of the apparatus according to various switch events generated by the switch part 11. The processing operation of the CPU 12 according to the gist of the present invention will be described in detail later. The ROM 13 stores various control programs loaded on the CPU 12. The various control programs include a main routine, generation processing, practice processing, and clear processing described later. The generation process includes a switch 1 process, a guide 1 process, a keyboard process, and an analysis process. The practice process includes a switch 2 process, a guide 2 process, a keyboard process, and a control process.

  The RAM 14 includes a work area WE, a song data area MDE, and a performance data area PDE, as shown in FIG. In the work area WE, various register / flag data used for the processing of the CPU 12 are temporarily stored. A part of the work area WE is used as a performance data buffer, and a series of performance data generated in response to a key press / release operation is temporarily stored. The series of performance data temporarily stored is stored in a performance data area PDE described later.

  In the music data area MDE of the RAM 14, note data [0] to [N] representing each sound constituting the music are addressed and stored in the order of music progress, as shown in FIG. One piece of note data consists of “pitch” representing the pronunciation pitch, “step time” representing the pronunciation timing in terms of elapsed time (absolute time) from the beginning of the song, and “gate time” representing the pronunciation period (sound length). The “Miss number area” for recording the number of performance mistakes, “End flag”, and “Determination flag”.

  The “miss count area” includes “delay count”, “advance count”, “error count”, and “miss count” as performance error items for classifying and counting the content of performance errors. The “number of delays” is counted when the key is pressed after an appropriate key pressing timing allowable range defined in advance with respect to the “step time”. Similarly, the “advance count” is counted when the key is pressed earlier than the appropriate key pressing timing allowable range. The “number of errors” is counted when another key that does not match the “pitch” in the note data is accidentally pressed. The “number of omissions” is counted when a key corresponding to “pitch” in the note data is not pressed.

  The “end flag” is a flag that is “1” when the note data is used for analysis processing (described later), and “0” when the note data is not used. The “discriminating flag” represents a mistake by the user (contents of performance mistakes that easily occur), and is given by an analysis process described later. Specifically, among the performance mistake items, when the “number of delays” is greater than or equal to a predetermined value and is the largest, it is determined that the note data has a wrong habit that the key is delayed and the flag value “1” is set. Is done.

  In addition, when the “advance count” is greater than or equal to a predetermined value among the performance mistake items, it is determined that the note data has a wrong habit of being pressed early and the flag value “2” is set. The Further, in the performance error item, when the “number of errors” is greater than or equal to a predetermined value and the largest, it is determined as the note data with the wrong key that the user is erroneously pressed, and the flag value “3” is set. . If the number of “missing times” is greater than or equal to a predetermined value among the performance mistake items, it is determined that the note data has a wrong habit of forgetting to press the key, and a flag value “4” is set. Note that when there are a plurality of performance error items that are greater than or equal to the predetermined value and the maximum number of performance errors, it is not possible to specify an incorrect habit of the user, and therefore a flag value “0” is set.

  As shown in FIG. 4, the performance data area PDE is divided into performance (1) to (N) areas corresponding to the number of performances, and one area is pressed by the user who plays from the beginning to the end of the song. A series of performance data generated in response to a key operation, that is, performance data [0] to [n] temporarily stored in the work area WE is transferred and stored. One piece of performance data includes “KEY” that indicates the pitch of the key that has been pressed, “ST (step time)” that indicates the timing at which the key was pressed by the elapsed time (absolute time) from the beginning of the song, End flag ". The end flag is a flag that is “1” when the performance data is used for analysis processing (described later), and “0” when the performance data is not used.

  The configuration of the embodiment will be described with reference to FIG. 1 again. In FIG. 1, the display unit 15 is configured by an LCD panel or the like, and displays a screen such as a setting state or an operation state of the apparatus or a guide display according to a display control signal supplied from the CPU 12. Here, the guide display means that an image showing each key of the keyboard 10 is displayed on the screen of the display unit 15, and a key to be played is guided to the user by changing the display form of the key image displayed on the screen. This refers to the display form.

  The sound source 16 is configured by a well-known waveform memory reading method and includes a plurality of sound generation channels that perform time-division operation. The tone generator 16 stores waveform data of various timbres, and among these, reads out waveform data corresponding to a tone parameter supplied from the CPU 12 and generates a tone output. The sound system 17 converts the musical tone output of the sound source 16 into an analog musical tone signal, and then performs filtering such as removing unnecessary noise from the musical tone signal, and then level-amplifies the musical tone output from the speaker.

B. Operation Next, the operation of the embodiment having the above-described configuration will be described with reference to FIGS. Hereinafter, the operation of the main routine will be described first, and then the operation of each process (generation process and practice process) called from the main routine will be described.

(1) Operation of Main Routine When the performance learning apparatus 100 is powered on, the CPU 12 executes the main routine shown in FIG. 3 and proceeds to step SA1, where various registers stored in the work area WE of the RAM 14 In addition to resetting the flag data to zero or setting an initial value, initialization is performed to instruct the sound source 16 to perform initialization. When the initialization is completed, the CPU 12 proceeds to step SA2, and determines whether the currently set operation mode is “generation mode”, “practice mode”, or “clear mode”. The operation mode is changed and set according to the mode switch operation, as will be described later. In addition, at the beginning of power-on of the performance learning apparatus 100, the “generation mode” is set as a default in the initialization in step SA1.

  If the operation mode is “generation mode”, the process proceeds to step SA3 to execute generation processing. As will be described later, in the generation process, when the start of the guide is instructed, a guide display is performed based on the note data, and a series of performance data [0] to [0] to be generated in response to a key pressing operation performed by the user according to the guide display. [N] is stored in the performance (N) area designated by the number N of performances in the performance data area PDE.

  When the performance practice of playing from the beginning to the end of the song according to the guide display is performed N or more times, each note data [0] to [N] from the performance (n) area in the performance data area PDE designated by the pointer n. ] Is searched for the performance data closest to the sound generation timing, and the presence or absence of a performance error is determined based on a comparison between the searched performance data and the corresponding note data. Performance error items ("delay count", "advance count") provided in the miss count area in the corresponding note data according to the analysis result of delay of key press timing, key press timing advance, key press omission) , “Number of errors” and “number of omissions”), the number of matching items is counted, and the contents of performance mistakes are classified and totaled for each note data [0] to [N].

  When the contents of performance mistakes for each note data [0] to [N] are classified and totaled for each note data [0] to [N] based on the performance data of all areas (performances (1) to (N)) in the performance data area PDE, the classification is totaled. Based on the contents of the performance mistakes for each of the recorded note data [0] to [N], the user is discriminated from the wrong habits (the sound of the performance mistakes and the performance mistakes that are likely to occur in the sounds), and the results are determined. A flag for determining the flag value to be represented is assigned to each note data [0] to [N]. When such a generation process is completed, the process returns to step SA2 again to determine the currently set operation mode.

  If the operation mode is the “practice mode”, the process proceeds to step SA4 and practice processing is executed. As will be described later, in the practice process, when the start of the guide is instructed by operating the start / stop switch, a guide is displayed based on the note data, and a tone is generated according to the user's key release operation according to the guide display. / Instructing the sound source 16 to mute, while corresponding to the key depression operation, the key depression pitch KEY, the step time ST represented by the value of the register T at the time of the key depression, and the end flag of the flag value “0” The performance data composed of the musical performance data is generated, and the musical note data corresponding to the generated performance data is retrieved from the music data area MDE of the RAM.

  Based on the comparison between the searched note data and performance data, the presence or absence of a performance error is determined. If there is a performance error, it is determined whether the same mistake has been repeated by referring to the determination flag in the performance error data. To do. In other words, mistakes in performance such as pressing a key-pressed sound early, keying a delayed key-pressed sound late, and key-incorrect key-pressed sound. If a performance error occurs, such as when a key is missed or a key is missed, a repeated practice period is set to correct the mistake. When the repetition practice period is set, the guide for correcting the wrong wrinkles is repeatedly performed until the repetition count M is reached in the repetition practice period, and when the guide is completed, the normal guide is resumed. When such practice processing is completed, the process returns to step SA2 again to determine the currently set operation mode.

  If the operation mode is “clear mode”, the process proceeds to step SA5 to execute a clear process. In the clear process, the number-of-misses area in each note data [0] to [N] stored in the song data area MDE (see FIG. 3) of the RAM 15 is cleared to zero and the performance (see FIG. 4) in the performance data area PDE (see FIG. 4). All the performance data [0] to [n] stored in the areas 1) to (N) are cleared. When the clear process is completed, the process returns to step SA2 again to determine the currently set operation mode.

(2) Operation of Generation Process Next, the operation of the generation process will be described with reference to FIG. When this process is executed via step SA3 (see FIG. 5) of the main routine described above, the CPU 12 proceeds to step SB1 shown in FIG. 6 and executes the switch 1 process. In the switch 1 process, as described later, when the mode switch is turned on, an instruction to change the operation mode is given. When the start flag STF is set to “1” in response to the start / stop switch being turned on and the start of the guide is instructed, the register T and the analysis flag KF are reset to zero and the timer interrupt prohibition is canceled. . On the other hand, when the start flag STF becomes “0” in response to the ON operation of the start / stop switch and the guide stop is instructed, the guide display on the display unit 15 is deleted and the timer interrupt is prohibited.

  Subsequently, in step SB2, guide 1 processing is executed. In the guide 1 process, as described later, if the guide is in progress (the start flag STF is “1”), the value of the register T is incremented every time the minimum unit time (tick) has elapsed, and the incremented register is incremented. If there is note data that has a step time that matches the value of T and has reached the sounding timing, a guide display that guides the key to be played based on the note data is performed, and the value of the incremented register T is If there is note data that matches the added value of the step time and the gate time and has reached the mute timing, the guide display is erased based on the note data. When such a guide is performed until the end of the song, a series of performance data [0] to [n] generated in response to the key pressing operation performed by the user according to the guide is designated by the number N of performances in the performance data area PDE. Store in the performance (N) area.

  Next, in step SB3, the tone generator 16 is instructed to generate / mute a musical sound in response to a key pressing operation, and if the guide is in progress, a key pressing pitch KEY and a key pressing key KEY are pressed in response to the user's key pressing operation. A keyboard process is performed in which performance data composed of a step time ST represented by the value of the register T at the time of the key and an end flag of the flag value “0” is generated and stored in the work area WE of the RAM 14.

  In step SB4, an analysis process is executed. In the analysis processing, as will be described later, from the performance (n) area in the performance data area PDE designated by the pointer n, the sound generation timing of each note data [0] to [N] in the music data area PDE is the most. Each piece of near performance data is searched, and the presence or absence of a performance error is determined based on a comparison between the searched performance data and the corresponding note data. If there is a performance mistake, it is provided in the number-of-misses area in the corresponding note data according to the result of analyzing its contents (wrong key press, delay in key press timing, key press timing advance, key press omission). The number of matching items among the performance error items ("delay count", "advance count", "error count", and "miss count") is counted and played for each note data [0] to [N]. Classify and aggregate the contents of mistakes. When the contents of performance mistakes for each note data [0] to [N] are classified and totaled for each note data [0] to [N] based on the performance data of all areas (performances (1) to (N)) in the performance data area PDE, the classification is totaled. Based on the contents of the performance mistakes for each of the recorded note data [0] to [N], the user is discriminated from the wrong habits (the sound of the performance mistakes and the performance mistakes that are likely to occur in the sounds), and the results are determined. A flag for determining the flag value to be represented is assigned to each note data [0] to [N].

  Next, the process proceeds to step SB5, and it is determined whether or not the operation mode has been changed to a mode other than the generation mode. If the mode is not changed to another operation mode, the determination result is “NO”, and the process returns to step SB1 described above. Thereafter, the above steps SB1 to SB4 are repeated until the generation mode is changed to another operation mode. Then, when the generation mode is changed to another operation mode in response to the above-described operation of turning on the mode switch, the determination result in step SB5 is “YES”, and this processing is finished.

  In this way, in the generation process, when the start of the guide is instructed, the note data of the step time (sound at the sounding timing) that matches the value of the register T advanced every time the minimum unit time (tick) elapses. If there is, a guide display for guiding the key to be played is performed based on the note data, and note data (sound at the mute timing) in which the value of the incremented register T matches the added value of the step time and the gate time is provided. If there is, the operation of erasing the guide display based on the note data is performed until the end of the song, while a series of performance data [0] to [n] generated according to the performance operation performed by the user according to the guide display is performed. The performance data area PDE stores the performance (N) area designated by the number of performances N.

  When such performance practice is performed N times or more, the performance data closest to the sounding timing of each note data [0] to [N] is obtained from the performance (n) area in the performance data area PDE designated by the pointer n. Each of them is searched, and the presence or absence of a performance error is judged based on comparison between the searched performance data and the corresponding note data. If there is a performance error, its contents (wrong key press, delay in key press timing, key press timing Performance error items ("delay count", "advance count", "error count", and "miss count") provided in the miss count area in the corresponding note data according to the result of analyzing the advance and key depression) ), The number of matching items is counted and the contents of performance mistakes are classified and totaled for each note data [0] to [N].

  When the contents of performance mistakes for each note data [0] to [N] are classified and totaled for each note data [0] to [N] based on the performance data of all areas (performances (1) to (N)) in the performance data area PDE, the classification is totaled. Based on the contents of the performance mistakes for each of the recorded note data [0] to [N], the user is discriminated from the wrong habits (the sound of the performance mistakes and the performance mistakes that are likely to occur in the sounds), and the results are determined. A flag for determining the flag value to be represented is assigned to each note data [0] to [N].

(3) Operation of Switch 1 Process Next, the operation of the switch 1 process will be described with reference to FIG. When this process is executed via step SB1 (see FIG. 6) of the generation process described above, the CPU 12 proceeds to step SC1 shown in FIG. 7, and the mode switch provided in the switch unit 11 is turned on. Judge whether or not.

  When the mode switch is turned on, the determination result is “YES”, the process proceeds to step SC2, the operation mode is changed, and this process is terminated. That is, every time the mode switch is turned on, “generation mode”, “practice mode”, and “clear mode” are cyclically specified. For example, when the mode switch is turned on in “generation mode”, The setting is changed from “generation mode” to “practice mode”.

  On the other hand, if the mode switch is not turned on, the determination result in step SC1 is “NO”, and the process proceeds to step SC3 to determine whether or not the start / stop switch is turned on. If the start / stop switch is not turned on, the determination result is “NO”, and the present process ends. If the start / stop switch is turned on, the determination result is “YES”, and the process proceeds to step SC4.

  In step SC4, the start flag STF is inverted. The start flag STF is a flag that indicates the start of the guide when the flag value is “1” and the stop of the guide when the flag value is “0”. The start / stop switch is a so-called toggle switch, and alternately instructs the start / stop of the guide according to the ON operation. Next, in step SC5, it is determined whether or not the start flag STF inverted in response to the ON operation of the start / stop switch is “1”.

  If the inverted start flag STF is “1” (start of guide), the determination result in step SC5 is “YES”, and the process proceeds to step SC6 to reset the register T to zero. Next, in step SC7, the timer interrupt prohibition is canceled, and in the subsequent step SC8, the analysis flag KF (described later) is reset to zero and the process is terminated. When the CPU 12 cancels the timer interrupt inhibition in step SC7, the CPU 12 starts a timer interrupt (not shown) that implements the timer function and starts counting the minimum unit time (tick) corresponding to the music playback tempo.

  On the other hand, if the start flag STF inverted according to the ON operation of the start / stop switch is “0” (stop of the guide), the determination result in step SC5 is “NO”, and the process proceeds to step SC9. 15 guide display is deleted. Then, the process proceeds to step SC10, the timer interrupt for measuring the music progression time is prohibited, and this process is finished.

  In this way, in the switch 1 process, when the mode switch is turned on, an instruction to change the operation mode is given. When the start flag STF is set to “1” in response to the start / stop switch being turned on and the start of the guide is instructed, the register T and the analysis flag KF are reset to zero and the timer interrupt prohibition is canceled. . On the other hand, when the start flag STF becomes “0” in response to the ON operation of the start / stop switch and the guide stop is instructed, the guide display on the display unit 15 is deleted and the timer interrupt is prohibited.

(3) Operation of Guide 1 Process Next, the operation of the guide 1 process will be described with reference to FIG. When this process is executed via step SB2 (see FIG. 6) of the generation process described above, the CPU 12 proceeds to step SD1 shown in FIG. 8, and whether the start flag STF is “1” (start of guide). Judge whether. If the start flag STF is “0” (stop of the guide), the determination result is “NO”, and this processing is terminated. If the start flag STF is “1” (start of the guide), the determination result is “ "YES", the process proceeds to step SD2.

  In step SD2, it is determined whether or not the timer function (timer interrupt) has counted the minimum unit time (tick) corresponding to the music playback tempo, that is, whether or not the minimum unit time has elapsed. If the minimum unit time has not elapsed, the determination result is “NO”, and the present process ends. However, if the minimum unit time has elapsed, the determination result in step SD2 is “YES”, and the process proceeds to step SD3. Advance and increment the value of the register T to advance. In step SD4, note data having a step time that matches the value of the incremented register T is searched from the music data area MDE of the RAM 14, and in the subsequent step SD5, the presence or absence of the corresponding note data, that is, the sounding timing is determined. It is determined whether or not there is reached note data.

  If there is note data that has reached the sounding timing, the determination result is “YES”, and the process proceeds to step SD6 to correspond to the pitch in the note data that has reached the sounding timing in the keyboard image displayed on the display unit 15. The guide display for changing the display form of the key image is executed to guide the user to the key to be played, and the process proceeds to step SD10 described later.

  On the other hand, if the note data that has reached the sounding timing is not searched, the determination result in step SD5 is “NO”, and the process proceeds to step SD7. In step SD7, the musical note data in which the value of the incremented register T matches the added value of the step time and the gate time is searched from the music data area MDE of the RAM 14, and in the subsequent step SD8, the presence or absence of the corresponding musical note data is detected. That is, it is determined whether or not there is note data that has reached the mute timing.

  If there is no note data that has reached the mute timing, the determination result is “NO”, and the process proceeds to Step SD10 described later. On the other hand, if there is note data that has reached the mute timing, the determination result in step SD8 is “YES”, the process proceeds to step SD9, and the mute timing has been reached in the keyboard image displayed on the display unit 15. After returning the display form of the key image corresponding to the pitch in the note data to erase the guide display, the process proceeds to step SD10.

  Thus, if there is note data that has reached the sounding timing, a guide display that guides the key to be played is performed based on the note data, and if there is note data that has reached the mute timing, a guide display is performed based on the note data. When erased, the CPU 12 proceeds to step SD10 and determines whether or not the value of the register T is equal to or greater than the music end time.

  If the value of the register T does not reach the song end time and the guide based on the note data is in progress, the determination result is “NO” and the process ends. However, the value of the register T becomes equal to or greater than the song end time. When the guide based on the note data is completed, the determination result in step SD10 is “YES”, and the flow proceeds to step SD11. In step SD11, a series of performance data generated in response to the user's key pressing operation, that is, a series of performance data [0] to [n] temporarily stored in the work area WE of the RAM 14 in a keyboard process (see FIG. 9) described later. ] Is stored in the performance (N) area designated by the number N of performances in the performance data area PDE of the RAM 14. Thereafter, the process proceeds to step SD12, where the number of performances N is incremented and stepped, and in step SD13, the register T is reset to zero and the process is terminated.

  Thus, in the guide 1 process, if the guide is in progress (the start flag STF is “1”), the value of the register T is incremented every time the minimum unit time (tick) corresponding to the music playback tempo elapses. If there is note data that has a step time that matches the value of the incremented register T and has reached the sounding timing, guide display for guiding the key to be played is performed based on the note data. If the stepped register T value matches the added value of the step time and the gate time and there is note data that has reached the mute timing, the guide display is erased based on the note data. When such a guide is performed until the end of the song, a series of performance data [0] to [n] generated in response to the key pressing operation performed by the user according to the guide is designated by the number N of performances in the performance data area PDE. Store in the performance (N) area.

(4) Keyboard Processing Operation Next, the keyboard processing operation will be described with reference to FIG. When this process is executed via step SB3 (see FIG. 6) of the generation process described above, the CPU 12 proceeds to step SE1 shown in FIG. 9 and detects the presence / absence of a key-on / key-off signal for each key of the keyboard 10. A key scan is performed, and in a subsequent step SE2, a key change is determined based on the key scan result in step SE1.

  If the key release operation is not performed and no key change occurs, it is determined in step SE2 that there is no key change, and this process is terminated. If a key-on signal generated in response to a key pressing operation is detected, the process proceeds to step SE3 via step SE2, and the pitch (key number) of the key pressed is stored in the register KEY. Hereinafter, the content of the register KEY is referred to as a pitch KEY. Next, in step SE4, the musical sound parameter generated based on the note-on event including the pitch KEY and velocity is supplied to the sound source 16. As a result, the sound source 16 generates a musical tone having the pitch of the depressed key.

  Next, in step SE5, it is determined whether the start flag STF is “1”, that is, whether the guide is in progress. If the guide is stopped (the start flag STF is “0”), the determination result is “NO”, and the present process ends. If the guide is in progress, the determination result is “YES” and the process proceeds to step SE6. , Performance data composed of a pitch KEY, a step time ST represented by the value of the register T at the time of key depression, and an end flag with a flag value “0” is generated and stored in the work area WE of the RAM 14. To finish this process.

  On the other hand, when a key-off signal generated in response to the key release operation is detected, the process proceeds to step SE7 via step SE2, and the pitch (key number) of the key released is stored in the register KEY. In step SE8, the musical tone parameter generated based on the note-off event including the pitch KEY of the key that has been released is supplied to the sound source 16. As a result, the sound source 16 mutes the musical tone at the pitch of the released key.

  As described above, in the keyboard processing, the tone generator 16 is instructed to generate / mute a musical sound in response to a key release operation. On the other hand, if the guide is in progress, the pitch KEY of the pressed key and the key pressing time point The performance data composed of the step time ST represented by the value of the register T and the end flag of the flag value “0” is generated and stored in the work area WE of the RAM 14. A series of performance data generated for each key press and temporarily stored in the work area WE is stored in the performance data area PDE of the RAM 14 in step SD11 (see FIG. 8) of the guide 1 process described above.

(5) Analysis Processing Operation Next, the analysis processing operation will be described with reference to FIGS. When this process is executed through step SB4 (see FIG. 6) of the generation process described above, the CPU 12 proceeds to step SF1 shown in FIG. 10, and the analysis flag KF is “0”, that is, a performance practice according to the guide. Based on the performance data generated by the above, it is determined whether or not the analysis process for analyzing the habit of the user's performance error is incomplete. If the analysis flag KF is “1” (analysis process completed), the determination result is “NO”, and the present process ends. If the analysis flag KF is “0” (analysis process incomplete), the determination result is It becomes "YES" and progresses to step SF2.

  Subsequently, in step SF2, it is determined whether or not the start flag STF is “0” (when the guide is stopped). If the guide is in progress (the start flag STF is “1”), the determination result is “NO”, and the present process ends. If the guide is stopped, the determination result is “YES” and the process proceeds to step SF3. In step SF3, it is determined whether or not the performance number N is a predetermined number or more. If the number N of performances is less than the predetermined number, the determination result is “NO”, and the present process is terminated. If the number of performances is not less than the predetermined number, the determination result is “YES” and the process proceeds to step SF4.

  In other words, if the analysis process is incomplete and the number of performances N is equal to or greater than the predetermined number in the state where the guide is stopped, the determination results in steps SF1 to SF3 are all “YES” and the process proceeds to step SF4. . In steps SF4 to SF5, the performance area designation pointer n in the performance data area PDE is set to the initial value “1”, and the note data designation pointer a in the music data area MDE is set to the initial value “0”. . Subsequently, in step SF6, performance data having a step time ST closest to the step time of the note data [a] designated by the pointer a is searched from the performance (n) area designated by the pointer n. .

  Next, in step SF7, it is determined whether or not the end flag in the performance data retrieved from the performance (n) area is “0”, that is, whether or not the performance data is unprocessed. If the performance data has been processed (the end flag is “1”), the determination result is “NO”, the process proceeds to step SF8, the performance data is excluded from the search target, and the process returns to step SF6.

  On the other hand, if the performance data is unprocessed (the end flag is “0”), the determination result in step SF7 is “YES”, and the process proceeds to step SF9. In step SF9, it is determined whether or not the pitch KEY in the performance data retrieved from the performance (n) area matches the pitch of the note data [a] designated by the pointer a. . If the pitches do not match, the determination result is “NO”, and the process proceeds to step SF10 to increment the number of errors (see FIG. 3) in the number-of-misses area of the note data [a] designated by the pointer a. Step forward. As a result, the number of erroneous key presses in the note data [a] is counted. Thereafter, the process proceeds to step SF15 shown in FIG.

  On the other hand, if the pitch KEY in the performance data retrieved from the performance (n) area matches the pitch of the note data [a] specified by the pointer a, the determination at step SF9 is made. The result is “YES”, and the flow proceeds to step SF11 illustrated in FIG. In steps SF11 to SF14, it is determined whether or not the key pressing timing of the corresponding performance data is out of the allowable range with respect to the sound generation timing of the note data [a], and if it is out of the allowable range, the delay / advance of the key pressing timing is determined. .

  That is, in step SF11, the step time ST (key press timing) in the corresponding performance data is outside the predetermined allowable range with respect to the step time (sound generation timing) of the note data [a] designated by the pointer a. Determine whether or not. If the performance data is pressed at an appropriate timing within the allowable range, the determination result is “NO”, and the process proceeds to Step SF15 described later.

  On the other hand, if the key pressing timing of the corresponding performance data is out of the allowable range with respect to the sound generation timing of the note data [a], the determination result in step SF11 is “YES”, and the process proceeds to step SF12 to press the key outside the allowable range. It is determined whether the key timing is delayed with respect to the sound generation timing. If it is delayed with respect to the sound generation timing, the determination result is “YES”, and the process proceeds to step SF13 to increment the number of delays (see FIG. 3) in the miss number area of the note data [a] designated by the pointer a. Then, the process proceeds to step SF15.

  On the other hand, if it is advanced (early) with respect to the sound generation timing, the determination result in step SF12 is “NO”, and the process proceeds to step SF14, where the number of misses in the note data [a] designated by the pointer a is After incrementing the number of times of advance (see FIG. 3), the process proceeds to step SF15.

  Next, in step SF15, “1” is set to each of the end flag in the corresponding performance data used as the analysis processing target and the end flag in the note data [a]. Subsequently, when the process proceeds to step SF16, it is determined whether or not the note data [a] designated by the pointer a is the end of the music piece. If it is not the end of the song, the determination result is “NO”, the process proceeds to step SF17, the pointer a is incremented and stepped, and then the process returns to step SF6 (see FIG. 10).

  On the other hand, if the note data [a] designated by the pointer a is the end of the music piece, the determination result in step SF16 is “YES”, and the flow advances to step SF18. In step SF18, it is determined whether or not there is musical note data whose end flag is “0” in the music data area MDE, that is, musical note data that is not used as an analysis processing target. If there is no missing performance and there is no corresponding note data, the determination result is “NO”, and the process proceeds to Step SF20 described later.

  On the other hand, if there is a missing performance and there is note data with an end flag of “0”, the determination result at step SF18 is “YES”, the process proceeds to step SF19, and a note data with an end flag of “0” is missed. After incrementing the number of omissions in the frequency area (see FIG. 3), the process proceeds to step SF20, and the end flags of all the note data [0] to [N] in the music data area MDE are cleared to zero.

  Thereafter, the process proceeds to step SF21, where the performance area designation pointer n in the performance data area PDE is incremented to be incremented, and in the subsequent step SF21, it is determined whether or not the incremented pointer n has exceeded the number of performances N. . If the incremented pointer n does not exceed the number of performances N, the determination result is “NO”, and the process returns to step SF5 described above.

  Thereafter, the performance data closest to the sounding timing of each note data [0] to [N] from the performance (n) area in the performance data area PDE newly designated by the pointer n advanced in step SF21. And the presence or absence of a performance error is determined based on a comparison between the retrieved performance data and the corresponding note data. Then, if there is a performance mistake, the content of the mistake (incorrect key press, delay in key press timing, key press timing advance, key press missing) is analyzed in the number of misses area in the corresponding note data according to the result of analysis. The number of matching items among the provided performance error items (“delay count”, “advance count”, “error count”, and “miss count”) is counted. By doing this, the contents of performance mistakes are classified and totaled for each sound constituting the song.

  Then, when the contents of performance mistakes for each note data [0] to [N] are classified and totaled for each note data [0] to [N] based on the performance data of all areas (performances (1) to (N)) in the performance data area PDE, The determination result in step SF22 is “YES”, and the process proceeds to step SF23 illustrated in FIG. In step SF23 and subsequent steps, the user is discriminated based on the contents of the performance mistakes classified and totaled for each sound constituting the music (accompanied by performance mistakes and the content of performance mistakes likely to occur in the sound). Hereinafter, the operation will be described.

  First, in step SF23, the pointer a is reset to zero. Subsequently, in step SF24, performance error items ("delay count", "advance count", "error count", and "miss count") in the miss count area of the note data [a] designated by the pointer a are selected. Search for the maximum value (maximum number of times). Next, in step SF25, it is determined whether or not the searched maximum value (maximum number of times) is a predetermined value or more. The predetermined value here is a threshold value for determining whether or not the sound is a performance mistake. If it is less than this threshold value, it is determined that the sound is not a performance mistake, and the determination result in step SF25 is “NO”, and the flow proceeds to step SF35 described later.

  On the other hand, if the retrieved maximum value (maximum number of times) is equal to or greater than the threshold value, it is determined that the sound is a performance mistake, and the determination result in step SF25 is “YES”, and the process proceeds to step SF26. In steps SF26 to SF33, a performance error that is likely to occur depends on whether the searched maximum value (maximum number) corresponds to “delay count”, “advance count”, “error count”, or “miss count”. The content of the user (the wrong user).

  That is, in step SF26, it is determined whether or not the retrieved maximum value (maximum number of times) is the “delay number”. If it is “delay number”, the determination result is “YES”, and the process returns to step SF30. Then, “1” is set to the discrimination flag in the note data [a] designated by the pointer a. As a result, the note data [a] is determined as a sound with a wrong habit of the user that the key depression is delayed. Thereafter, the process proceeds to Step SF35 described later.

  If the retrieved maximum value (maximum number) is not “delay number”, the determination result in step SF26 is “NO”, and the process proceeds to step SF27. In step SF27, it is determined whether or not the searched maximum value (maximum number) is “advance number”. If it is “advance number”, the determination result is “YES”, and the process proceeds to step SF31. “2” is set to the discrimination flag in the note data [a] designated by the pointer a. As a result, the note data [a] is discriminated as a sound with a wrong habit of being pressed by the user early. Thereafter, the process proceeds to Step SF35 described later.

  If the retrieved maximum value (maximum number of times) is not “the number of times of advance”, the determination result in step SF27 is “NO”, and the process proceeds to step SF28. In step SF28, it is determined whether or not the searched maximum value (maximum number) is “number of errors”. If it is “number of errors”, the determination result is “YES”, and the process proceeds to step SF32. “3” is set to the discrimination flag in the note data [a] designated by the pointer a. As a result, the note data [a] is determined as a sound with a wrong habit of the user being erroneously pressed. Thereafter, the process proceeds to Step SF35 described later.

  If the retrieved maximum value (maximum number) is not the “number of errors”, the determination result in step SF28 is “NO”, and the process proceeds to step SF29. In step SF29, it is determined whether or not the searched maximum value (maximum number of times) is “the number of omissions”. If it is “number of omissions”, the determination result is “YES”, and the process proceeds to step SF33. “4” is set to the discrimination flag in the note data [a] designated by the pointer a. As a result, the note data [a] is determined as a sound with a wrong habit of the user forgetting to press the key. Thereafter, the process proceeds to Step SF35 described later.

  If there are a plurality of performance error items with the maximum value (maximum number of times) searched for being equal to or greater than the threshold value, the determination results in steps SF26 to SF29 are all “NO”, the process proceeds to step SF34, and the pointer a After setting “0” to the discrimination flag in the note data [a] specified in step S35, the process proceeds to step SF35. In step SF35, the miss count area (see FIG. 3) in the note data [a] designated by the pointer a is cleared.

  Next, the process proceeds to step SF36, and the pointer a is incremented to be advanced. In the subsequent step SF37, it is determined whether or not the value of the advanced pointer a exceeds the number of musical note data of the music, that is, all the musical note data is processed by the user. It is determined whether or not the wrong trap (contents of performance mistakes that are likely to occur) has been determined. If the determination has not been completed, the determination result is “NO”, the process returns to the above-described step SF24, and the user is mistaken for the note data [a] specified by the stepped pointer a. Content). When the determination is completed for all the note data, the determination result in step SF37 is “YES”, the process proceeds to step SF38, and the analysis flag KF is set to “1”, thereby indicating the end of the analysis process. Finish the process.

  In this way, in the analysis process, the performance data closest to the sounding timing of each note data [0] to [N] is searched from the performance (n) area in the performance data area PDE designated by the pointer n. Based on a comparison between the searched performance data and the corresponding note data, it is determined whether or not there is a performance error. If there is a performance mistake, it is provided in the number-of-misses area in the corresponding note data according to the result of analyzing its contents (wrong key press, delay in key press timing, key press timing advance, key press omission). The number of matching items among the performance error items ("delay count", "advance count", "error count", and "miss count") is counted and played for each note data [0] to [N]. Classify and aggregate the contents of mistakes.

  When the contents of performance mistakes for each note data [0] to [N] are classified and totaled for each note data [0] to [N] based on the performance data of all areas (performances (1) to (N)) in the performance data area PDE, the classification is totaled. Based on the contents of the performance mistakes for each of the note data [0] to [N], the user is discriminated as a mistake, and a flag flag indicating the result is given to each note data [0] to [N]. To do.

(6) Operation of Practice Process Next, the operation of the practice process will be described with reference to FIG. When this process is executed through step SA4 (see FIG. 5) of the main routine described above, the CPU 12 proceeds to step SG1 shown in FIG. 13 and executes the switch 2 process. In the switch 2 process, as will be described later, when the mode switch is turned on, an instruction to change the operation mode is given. When the start of the guide is instructed by turning on the start / stop switch, the register T and the practice flag are set. RF (to be described later) is reset to zero and the timer interrupt prohibition is canceled. On the other hand, when an instruction to stop the guide is given, the guide display on the display unit 15 is erased and the timer interrupt is prohibited.

  Subsequently, in step SG2, guide 2 processing is executed. In the guide 2 process, as described later, if the guide is in progress, the value of the register T is incremented every time the minimum unit time (tick) corresponding to the music reproduction tempo elapses, and the value of the incremented register T is incremented. If there is note data that has a step time that coincides with the sound generation timing, guide display for guiding a key to be played is performed based on the note data. If the stepped register T value matches the added value of the step time and the gate time and there is note data that has reached the mute timing, the guide display is erased based on the note data.

  Then, when the same performance mistake occurs in the sound that has been missed while the guide is in progress, and a repeated practice period is set by the control process described later, the mistake is repeated until the number of repetitions M is reached in the repeated practice period. Repeat the guide to correct wrinkles and resume normal guidance when it is complete.

  Next, in step SG3, the tone generator 16 is instructed to generate / mute a musical sound in response to a key release operation. The keyboard processing is performed in which performance data composed of the step time ST and the end flag of the flag value “0” are generated and stored in the work area WE of the RAM 14.

  In step SG4, control processing is executed. In the control process, as will be described later, note data corresponding to the performance data generated by the keyboard process in step SG3 is searched from the music data area MDE of the RAM 14, and the searched note data is compared with the performance data. Based on this, it is determined whether there is a performance mistake. If there is a performance mistake, it is determined whether or not the same mistake has been repeated with reference to a discrimination flag in the note data that has been missed. In other words, mistakes in performance such as pressing a key-pressed sound early, keying a delayed key-pressed sound late, and key-incorrect key-pressed sound. If there is a performance mistake that causes you to forget to press a key that has been missed, or that you have forgotten to press the key, you will repeatedly practice to correct the wrong habit (the mistake of the performance mistake and the performance mistake that is likely to occur in that sound). Set the period.

  Subsequently, in step SG5, it is determined whether or not the operation mode has been changed to a mode other than the practice mode. If the operation mode is not changed to another operation mode, the determination result is “NO”, and the process returns to step SG1 described above. Thereafter, steps SG1 to SG4 are repeated until the practice mode is changed to another operation mode. Then, when the practice mode is changed to another operation mode in response to the ON operation of the mode switch, the determination result in step SG5 is “YES”, and this process is finished.

  As described above, in the practice process, when the guide start is instructed, the value of the register T is incremented every time the minimum unit time (tick) corresponding to the music playback tempo elapses, and the incremented register T is incremented. If there is note data that has a step time that matches the value and has reached the sounding timing, a guide display that guides the key to be played is performed based on the note data. If the stepped register T value matches the added value of the step time and the gate time and there is note data that has reached the mute timing, the guide display is erased based on the note data.

  The sound source 16 is instructed to generate / mute a musical tone in accordance with the user's key release operation according to the guide, and is expressed by the key depression pitch KEY corresponding to the key depression and the value of the register T at the time of the key depression. Performance data composed of a step time ST and an end flag with a flag value “0” are generated, and note data corresponding to the generated performance data is retrieved from the music data area MDE of the RAM 14.

  Based on the comparison between the searched note data and performance data, the presence or absence of a performance error is determined. If there is a performance error, it is determined whether the same mistake has been repeated by referring to the determination flag in the performance error data. To do. In other words, mistakes in performance such as pressing a key-pressed sound early, keying a delayed key-pressed sound late, and key-incorrect key-pressed sound. If a performance error occurs, such as when a key is missed or a key is missed, a repeated practice period is set to correct the mistake. When the repetition practice period is set, the guide for correcting the wrong wrinkles is repeatedly performed until the repetition count M is reached in the repetition practice period, and when the guide is completed, the normal guide is resumed.

(7) Operation of Switch 2 Process Next, the operation of the switch 2 process will be described with reference to FIG. When this process is executed through step SG1 (see FIG. 13) of the above-described practice process, the CPU 12 proceeds to step SH1 shown in FIG. Judging.

  When the mode switch is turned on, the determination result is “YES”, the process proceeds to step SH2, the operation mode is changed, and this process is terminated. That is, every time the mode switch is turned on, “generation mode”, “practice mode”, and “clear mode” are cyclically specified. For example, when the mode switch is turned on in “generation mode”, The setting is changed from “generation mode” to “practice mode”.

  On the other hand, if the mode switch is not turned on, the determination result in step SH1 is “NO”, and the process proceeds to step SH3 to determine whether or not the start / stop switch is turned on. If the start / stop switch is not turned on, the determination result is “NO”, and this process is completed. If the start / stop switch is turned on, the determination result is “YES”, and the process proceeds to step SH4.

  In step SH4, the start flag STF is inverted, and in the subsequent step SH5, it is determined whether or not the inverted start flag STF is “1”. If the inverted start flag STF is “1” (start of the guide), the determination result in step SH5 is “YES”, the process proceeds to step SH6, and the register T is reset to zero. In step SH7, the timer interrupt prohibition is canceled. Next, in step SH8, a practice flag RF (described later) is reset to zero and the process is terminated. When the CPU 12 cancels the timer interrupt prohibition in step SH7, the CPU 12 starts a timer interrupt (not shown) that implements the timer function and starts counting the timer minimum time (tick) corresponding to the music playback tempo.

  On the other hand, if the start flag STF inverted according to the ON operation of the start / stop switch is “0” (stop of the guide), the determination result of the above step SH5 becomes “NO”, and the process proceeds to step SH9, where the display unit 15 guide display is deleted. Thereafter, the process proceeds to step SH10, the timer interrupt for measuring the music progression time is prohibited, and the present process is terminated.

  Thus, in the switch 2 process, when the mode switch is turned on, the operation mode is instructed. When the start flag STF is set to “1” in response to the start / stop switch being turned on and the start of the guide is instructed, the register T and the practice flag RF (described later) are reset to zero and the timer interrupt is performed. Remove the ban. On the other hand, when the start flag STF becomes “0” in response to the ON operation of the start / stop switch and the guide stop is instructed, the guide display on the display unit 15 is deleted and the timer interrupt is prohibited.

(8) Operation of Guide 2 Process Next, the operation of the guide 2 process will be described with reference to FIGS. When this process is executed via step SG2 (see FIG. 13) of the above-described practice process, the CPU 12 proceeds to step SJ1 shown in FIG. 15, and whether the start flag STF is “1” (start of guide). Judge whether. If the start flag STF is “0” (stop of the guide), the determination result is “NO”, and this processing is terminated. If the start flag STF is “1” (start of the guide), the determination result is “ "YES", the process proceeds to step SJ2.

  In step SJ2, it is determined whether or not the timer function (timer interrupt) has counted the minimum unit time (tick) corresponding to the music playback tempo, that is, whether or not the minimum unit time has elapsed. If the minimum unit time has not elapsed, the determination result is “NO”, and the present process ends. However, if the minimum unit time has elapsed, the determination result in step SJ2 is “YES”, and the process proceeds to step SJ3. Advance and increment the value of the register T to advance. In step SJ4, note data having a step time that matches the value of the incremented register T is searched from the music data area MDE of the RAM 14, and in the subsequent step SJ5, the presence or absence of the corresponding note data, that is, the sounding timing is determined. It is determined whether or not there is reached note data.

  If there is note data that has reached the sounding timing, the determination result is “YES”, and the process proceeds to step SJ6 to correspond to the pitch in the note data that has reached the sounding timing in the keyboard image displayed on the display unit 15. After the guide display for changing the display form of the key image is executed to guide the user to play the key, the process proceeds to step SJ10 described later.

  On the other hand, if the note data that has reached the sounding timing is not searched, the determination result in step SJ5 is “NO”, and the process proceeds to step SJ7. In step SJ7, the musical note data whose value of the incremented register T matches the added value of the step time and the gate time is searched from the music data area MDE of the RAM 14, and in the subsequent step SJ8, the presence or absence of the corresponding musical note data is detected. That is, it is determined whether or not there is note data that has reached the mute timing.

  If there is no note data that has reached the mute timing, the determination result is “NO”, and the process proceeds to Step SJ10 described later. On the other hand, if there is note data that has reached the mute timing, the determination result in step SJ8 is “YES”, the process proceeds to step SJ9, and the mute timing has been reached in the keyboard image displayed on the display unit 15. After returning the display form of the key image corresponding to the pitch in the note data to erase the guide display, the process proceeds to step SJ10.

  In step SJ10, it is determined whether or not the practice flag RF is “0”. It should be noted that the practice flag RF is a repetitive practice period for correcting mistakes in the user (contents of performance mistakes that are likely to occur in performance mistakes) in a control process (see FIGS. 18 to 18) described later. This flag is “1” when set, and “0” when the repeated practice period is canceled. Therefore, in this step SJ10, it is determined whether or not a repeated practice period is set.

  If the guide start is instructed by operating the start / stop switch, that is, if the repeated practice period is not set by the control process (see FIGS. 18 to 18) described later, the practice flag RF is “0”. The determination result is “YES”, and the process proceeds to Step SJ11 shown in FIG. In step SJ11, it is determined whether or not the value of the register T is equal to or greater than the song end time, that is, whether or not the guide based on the note data has been completed.

  If the value of the register T does not reach the song end time and the guide based on the note data is in progress, the determination result is “NO” and the process ends. However, the value of the register T becomes equal to or greater than the song end time. When the guide based on the note data is completed, the determination result in step SJ11 is “YES”, the process proceeds to step SJ12, and the timer interrupt for counting the music progression time is prohibited. Thereafter, the process proceeds to step SJ13, where the start flag STF is reset to zero. In the subsequent step SJ14, the guide display on the display unit 15 is erased and the present process is terminated.

  On the other hand, the repetition practice period is set by a control process (see FIGS. 17 to 18) described later, and after the practice flag RF becomes “1”, this guide 2 process is executed again, and the above-described step SJ10 ( When the process proceeds to (see FIG. 15), the determination result in step SJ10 is “NO”, and the process proceeds to step SJ15 illustrated in FIG. In step SJ15, it is determined whether or not the value of the register T is greater than or equal to the value of the register T2.

  A time value corresponding to the current music position is stored in the register T, and a time value corresponding to the end of the repeated practice period is stored in the register T2 by a control process described later. Therefore, in step SJ15, it is determined whether the repeated practice period has passed. If the repetitive practice period has not passed, the determination result is “NO”, and the present process ends. However, after the repetitive practice period, the determination result becomes “YES”, and the process proceeds to step SJ16 to increment the practice count m. And step forward.

  Next, in step SJ17, it is determined whether or not the stepped practice number m exceeds the number of repetitions M. If the number of exercises m does not exceed the number of repetitions M, the determination result is “NO”, the process proceeds to step SJ19, the time value of the register T1 corresponding to the start of the repetition exercise period is stored in the register T, and this process is performed once. Finish. Thereafter, in this guide 2 process, the guide from the beginning (T1) to the end (T2) of the repeated practice period is repeated.

  When the guide for correcting a mistake (contents of performance mistakes that are likely to occur in performance mistakes) is repeated until the number of repetitions M is reached, the determination result in step SJ17 becomes “YES”, and the flow returns to step SJ18. In step SJ19, the time value of the register T1 corresponding to the start of the repeated practice period is stored in the register T, and the process is temporarily terminated. Thereafter, in this process, normal guidance is resumed from the time value of the register T1.

  As described above, in the guide 2 process, if the guide is in progress (the start flag STF is “1”), the value of the register T is incremented every time the minimum unit time (tick) corresponding to the music playback tempo elapses. When there is note data that has a step time that matches the value of the incremented register T and has reached the sounding timing, a guide display for guiding the key to be played is performed based on the note data. If the stepped register T value matches the added value of the step time and the gate time and there is note data that has reached the mute timing, the guide display is erased based on the note data.

  While such a guide is in progress, the same performance error occurs in a sound with a performance error, and a repetitive practice period (from the time value of the register T1 to the time value of the register T2) is set according to the control process described later. Until the number of repetitions M is reached, a guide for correcting mistakes (contents of performance mistakes that are likely to occur in performance mistakes) is repeated, and when this is completed, the normal guide is resumed from the time value of the register T1. .

(9) Operation of Control Process Next, the operation of the control process will be described with reference to FIGS. When this process is executed through step SG4 (see FIG. 13) of the above-described practice process, the CPU 12 proceeds to step SL1 shown in FIG. 17 and determines whether or not the practice flag RF is “1”, that is, the user. Judge whether the repeated practice period to correct the wrong wrinkles has been set. If the repeated practice period has been set, the determination result is “YES”, and the present process ends.

  On the other hand, if the repeated practice period is not set (practice flag RF is “0”), the determination result is “NO”, and the flow proceeds to step SL2. In step SL2, note data having a step time closest to the step time ST of the performance data is searched from the music data area MDE of the RAM. The performance data is data that is generated in response to a key press in the above-described keyboard processing (see FIG. 9) and is temporarily stored in the work area WE of the RAM 14, and the pitch key KEY of the key pressed and the key press. It consists of a step time ST represented by the value of the register T at the time of the key, and an end flag with a flag value “0”.

  Subsequently, in step SL3, it is determined whether or not the end flag in the corresponding note data searched from the music data area MDE is “0”, that is, whether or not it is unprocessed note data. If the corresponding note data has been processed (the end flag is “1”), the determination result is “NO”, the process proceeds to step SL4, the corresponding note data is excluded from the search target, and the process returns to step SL2.

  On the other hand, if the corresponding note data is unprocessed (the end flag is “0”), the determination result in step SL3 is “YES”, and the flow proceeds to step SL5. In step SL5, it is determined whether or not the pitch in the corresponding note data retrieved from the music data area MDE matches the pitch KEY of the performance data, that is, whether or not the key has been erroneously pressed. In the following, the description of the operation will be divided into a case where the key is not erroneously pressed and a case where the key is erroneously pressed.

<If not accidentally pressed>
In this case, since the pitch in the corresponding note data retrieved from the music data area MDE matches the key depression pitch KEY of the performance data, step SL5 is “YES”, and the flow proceeds to step SL6. In step SL6, whether or not the difference between the step time (sounding timing) of the corresponding note data and the step time ST (key pressing timing) of the performance data is within a predetermined range, that is, pressing at an appropriate timing. Determine if it was locked. If the key is pressed at an appropriate timing, the determination result is “YES”, the process proceeds to step SL7, the end flag in the corresponding note data retrieved from the music data area MDE is set to “1”, and this process is performed. Finish.

  On the other hand, the difference between the step time (sounding timing) of the corresponding note data and the step time ST (key pressing timing) of the performance data does not fall within a predetermined range and is not pressed at an appropriate timing. In this case, the determination result in step SL6 is “NO”, and the flow proceeds to step SL8. In step SL8, it is determined whether or not the deviation of the step time ST (key press timing) of the performance data from the step time (sound generation timing) of the corresponding note data is “advance”.

  If the key press timing shift with respect to the sound generation timing is “advance”, the determination result is “YES”, and the process proceeds to step SL9. In step SL9, it is determined whether or not the determination flag in the corresponding note data is “2”, that is, whether the same mistake of pressing the key-winning sound earlier is repeated. If the same mistake is not repeated, the determination result is “NO”, and the present process is terminated. However, if the same mistake is repeated, the determination result is “YES”, and the process proceeds to Step SL17 (see FIG. 18) described later.

  On the other hand, if the shift of the key pressing timing with respect to the sound generation timing is “delayed”, the determination result in step SL8 is “NO”, and the flow proceeds to step SL10. In step SL10, it is determined whether or not the determination flag in the corresponding note data is “1”, that is, the same mistake that a delayed key-pressing sound is delayed is repeated. If the same mistake is not repeated, the determination result is “NO”, and the present process is terminated. However, if the same mistake is repeated, the determination result is “YES”, and the process proceeds to Step SL17 (see FIG. 18) described later.

  As described above, when the same mistake is repeated such that the key-pressing sound is pressed early or the key-winning sound is pressed after a delay, as shown in FIG. Step SL17 and the subsequent steps shown in FIG. 5 are executed, and a repetition practice period is set to correct a mistake (a content of performance mistakes that are likely to occur in performance mistakes).

  First, in step SL17, a time value a predetermined time before the step time ST (key press timing) of the performance data when the same mistake is repeated is stored in the register T1, and in the subsequent step SL18, the step time ST ( The time value after a predetermined time from the key pressing timing) is stored in the register T2. Thus, when the repeated practice period is set by the time value stored in the register T1 and the time value stored in the register T2, the process proceeds to step SL19, and the time value of the register T1 (corresponding to the beginning of the repeated practice period). Is stored in the register T, and in the subsequent step SL20, the practice flag RF is set to “1” to indicate that the repeated practice period has been set, and the process is terminated.

  When the repeated practice period is set, in the above-described guide 2 process (see FIGS. 15 to 16), a guide for correcting wrong wrinkles is repeatedly performed until the repetition number M is reached.

<Incorrect key press>
In this case, since the pitch in the corresponding note data searched from the music data area MDE and the pitch KEY of the performance data do not match, the determination result in step SL5 shown in FIG. Proceed to step SL11 shown in FIG. In step SL11, note data having a step time closest to the step time ST of the performance data is searched from the music data area MDE of the RAM. That is, it searches for note data of the sound to be played next to the sound to be played now.

  Next, in step SL12, it is determined whether or not the end flag in the corresponding note data retrieved from the music data area MDE is “0”, that is, whether or not it is unprocessed note data. If the corresponding note data has been processed (end flag is “1”), the determination result is “NO”, the process proceeds to step SL13, the corresponding note data is excluded from the search target, and the process returns to step SL11.

  On the other hand, if the corresponding note data is unprocessed (the end flag is “0”), the determination result in step SL12 is “YES”, the process proceeds to step SL14, and the note data in the corresponding note data retrieved from the song data area MDE is included. It is determined whether or not the pitch matches the key depression pitch KEY of the performance data. That is, in step SL14, it is determined whether or not the next sound to be played has been accidentally played. If the pitch in the note data does not match the pitch KEY in the performance data, that is, if the next note is not played, the determination result is “NO”, and the flow proceeds to step SL15.

  In step SL15, it is determined whether the determination flag in the corresponding note data is “3”, that is, whether the same mistake of erroneously pressing a key that has been mistakenly pressed is repeated. If the same mistake is not repeated, the determination result is “NO”, and the present process is terminated. If the same mistake is repeated, the determination result is “YES”, and the process proceeds to step SL17.

  On the other hand, when the pitch in the corresponding note data matches the key depression pitch KEY of the performance data and the next played sound is accidentally played, the determination result in step SL14 is “YES”. The process proceeds to step SL16. In step SL16, it is determined whether or not the determination flag in the corresponding note data is “4”, that is, whether the same mistake of forgetting to press the key-losing sound is repeated. If the same mistake is not repeated, the determination result is “NO”, and the present process is terminated. If the same mistake is repeated, the determination result is “YES”, and the process proceeds to step SL17.

  If the same mistake has been repeated, such as accidentally pressing a wrong key-pressing sound or forgetting to press a key-missing winning sound, the above-described step SL17 and subsequent steps are executed. This process is completed by setting a repeated practice period to correct mistakes (contents of performance mistakes that are likely to occur in performance mistakes). When the repeated practice period is set, in the above-described guide 2 process (see FIGS. 15 to 16), a guide for correcting wrong wrinkles is repeatedly performed until the number of repetitions M is reached.

  In this way, in the control process, the note data corresponding to the performance data generated in response to the key depression is searched from the music data area MDE of the RAM 14, and the performance error is determined based on the comparison between the searched note data and the performance data. The presence / absence is determined, and if there is a performance error, it is determined whether the same mistake has been repeated with reference to the determination flag of the note data for which the performance error has occurred. In other words, mistakes in performance such as pressing a key-pressed sound early, keying a delayed key-pressed sound late, and key-incorrect key-pressed sound. If there is a performance mistake that causes you to forget to press a key that has been missed, or if you forget to press a key, you will set a repeated practice period to correct the mistake.

  As described above, in the present embodiment, in the generation mode, first, guide display for guiding the key to be played to the user is performed based on the note data representing each sound constituting the song, and the user performs a key pressing operation according to the guide display. Based on a comparison between the performance data that is generated and the corresponding note data, it is determined whether there is a performance error. If there is a performance error, the process is performed multiple times by categorizing by the corresponding performance error item and counting the number of occurrences. Then, from each sound constituting the music, a performance error winning sound and a performance error item that easily occurs are extracted.

  In the practice mode, a guide display for guiding the key to be played to the user based on the note data representing each sound constituting the music is performed, and the performance data generated by the key pressing operation performed by the user according to the guide data and the corresponding note Based on the comparison with the data, the presence or absence of a performance error is judged. If there is a performance error, whether or not it is a performance error item that is likely to occur in the performance error winning sound extracted in the generation mode, that is, the same mistake is repeated. If the same mistake is repeated, a guide will be displayed to repeat the performance of the mistaken performance, so correct the mistakes of the user who plays the song and practice It becomes possible to increase the effect.

  In the present embodiment, a predetermined number of repeated exercises are performed for a sound in which the same mistake is repeated, but the present invention is not limited to this, and whether or not the key pressing operation during the repeated exercise is appropriate. A repetition practice determination means for determining, and a practice number control means for resetting the practice number m to zero and starting the repeated practice from the beginning when it is determined by the repeated practice determination means that an erroneous key pressing operation has been performed. It is also possible to provide a further aspect. By further providing such a configuration, it is possible to further improve the effect of correcting a wrinkle that is incorrect by the user.

  Furthermore, the performance error items described above ("delay count", "advance count", "error count", and "miss count"), such as giving a high weight to performance errors that have a high influence on the performance of the song, such as erroneous key presses, ) It is also possible to assign a weighting coefficient according to the degree of influence in advance and to make the number of repeated exercises different by referring to the weighting coefficient assigned to the performance error item of the sound in which the same mistake is repeated. It is. In this way, if the sound with a high influence on the music performance has a wrong habit, the number of repeated exercises is increased. On the other hand, if the sound with a lower influence has a wrong habit, the number of repeated exercises is reduced. It is possible to focus on correcting wrinkles that are mistaken for sounds with a high degree of influence.

  Further, in the embodiment described above, in order to simplify the description, data representing each sound constituting the music (pitch, step time and gate time) and data used for generation processing or practice processing (miss count area, The note data in which the end flag and the discrimination flag) are integrated is used, but it is also possible to adopt a mode in which both data are separated.

  That is, the data (the number of misses area, the end flag, and the discrimination flag) used for the generation process or practice process is provided as a separate database associated with each sound constituting the song, and this data is generated when the generation process or practice process is executed. As an aspect of referring to the database, the practice effect can be enhanced by correcting mistakes in the user who plays the music, as in the above-described embodiment.

10 Keyboard 11 Switch 12 CPU
13 ROM
14 RAM
DESCRIPTION OF SYMBOLS 15 Display part 16 Sound source 17 Sound system 100 Performance learning apparatus

Claims (6)

Note data storage means for storing note data representing each sound constituting a song;
First guide means for guiding the performance of each sound constituting the music according to the note data stored in the note data storage means;
First determination means for comparing the performance data generated by the user's performance operation corresponding to the guide by the first guide means and the note data of the guided sound to determine the presence or absence of a performance error;
Counting means for counting the number of occurrences of performance error items corresponding to the note data of the sound determined to have a performance error by the first determination means, and corresponding to the content of the performance error;
Based on the result of counting the number of occurrences of each performance error item counted by the counting means for each note data of each sound constituting the music, the performance error in the music and the performance errors likely to occur with the sound. Extracting means for extracting items;
A performance generated by the user's performance operation corresponding to the guide executed by the first guide means after the extraction means extracts the performance mistakes in the music and the performance mistake items likely to occur in the sound. A second determination means for comparing the data and the note data of the guided sound to determine the presence or absence of a performance mistake;
When the sound determined by the second determining means that a performance error has occurred matches a performance error item that is likely to occur in the performance error winning sound extracted by the extracting means, the performance error winning sound And a second guide means for repeatedly guiding the performance of the note data a predetermined number of times.   The extraction means extracts note data having a performance error item having the maximum number of occurrences and a predetermined number of times or more among the number of occurrences by performance error item as a performance error item that is likely to occur in a performance error winning sound. The performance learning apparatus according to claim 1, wherein The second guide means includes
Period setting means for repeatedly setting a predetermined time width before and after a point in time when performance data corresponding to a sound determined to have caused a performance error by the second determination means as a practice period;
Resumption instructing means for instructing the first guiding means to resume the guide after repetitively guiding the performance of the note data of the mistaken performance winning sound for a predetermined number of times in the repetitive practice period set by the period setting means. The performance learning apparatus according to claim 1, wherein: Repeated practice determination means for determining whether or not the user's performance operation corresponding to the repeated guide by the second guide means is appropriate;
The practice number control means for causing the second guide means to repeat the guide from the beginning when it is judged by the repeated practice judgment means that an erroneous performance operation has been performed. The performance learning apparatus according to 1.   A weighting coefficient that differs depending on the degree of influence on the performance of the music is assigned to each performance error item in advance, and the performance determined by the second determination means as having been determined that a performance error has occurred is extracted by the extraction means. Number of instruction means for differentiating the number of repetitions instructing the second guide means with reference to a weighting coefficient assigned to an easily-occurring performance error item in the case of an unacceptable performance error item in a mistake-winning sound The performance learning apparatus according to claim 1, further comprising: On the computer,
A first guide step for guiding the performance of each sound constituting the music according to the note data representing each sound constituting the music;
A first determination step of comparing the performance data generated by the user's performance operation corresponding to the guide by the first guide step and the note data of the guided sound to determine whether or not there is a performance error;
A counting step of counting the number of occurrences of performance error items corresponding to the note data of the sound determined to have a performance error in the first determination step, and corresponding to the content of the performance error;
Based on the result of counting the number of occurrences for each performance error item counted in the counting step for each note data of each sound constituting the music, the performance error in the music and the performance errors likely to occur with the sound. An extraction step for extracting items;
The performance generated by the user's performance operation corresponding to the guide executed by the first guide step after the extraction step extracts the performance mistakes in the song and the performance mistake items likely to occur in the sound. A second determination step of comparing the data and the note data of the guided sound to determine the presence or absence of a performance error;
If the sound determined to have a performance error in the second determination step matches a performance error item likely to occur in the performance error winning sound extracted in the extraction step, the performance error winning sound And a second guide step for repeatedly guiding the performance of the note data a predetermined number of times.

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