JP4635577B2 - Performance practice device and performance practice program - Google Patents

Description

  The present invention relates to a performance practice device and a performance practice processing program, and more particularly to a performance practice device and a performance practice processing program having a function of determining whether or not a practice song is a correct performance.

There have been many proposals for determining whether a performance is correct or incorrect when a practice piece is played with an electronic keyboard instrument or the like.
For example, according to a proposed performance learning apparatus and performance learning processing program, when performing while watching a display screen in which an image of a performance instruction instructing the performance of a song changes over time, the performance instruction is sufficiently given. In addition to grasping it, you can practice performance while feeding back performance mistakes in real time. In this proposal, based on performance instruction data for instructing the performance of a song, a first image area representing performance instruction data to be performed at a time later than the performance start time and a performance instruction for a time past the performance start time. An image obtained by dividing the second image area representing data by the boundary position indicating the performance start time is displayed on the screen of a predetermined display means, and the first and second image areas together with the boundary position are displayed together with the boundary position in the future. Move in a certain direction on the screen corresponding to the direction. (See Patent Document 1)
In addition, according to other proposed performance practice devices and performance practice programs, performance can be practiced from the beginning of the phrase with the greatest number of performance errors among phrases corresponding to the natural flow of the music to be performed. In this proposal, the performance operation is guided according to the song data read from the song data storage means for storing the song data for each phrase constituting the song, and the number of performance mistakes different from the guided performance operation is detected and totaled for each phrase. Then, the phrase having the largest number of performance mistakes is searched for, and the guidance for the performance operation is resumed from the beginning of the searched phrase. (See Patent Document 2)
JP 2003-58155 A JP 2004-205906 A

However, it is not limited to playing such instruments, and humans often make mistakes by repeating what they have mistakenly stored. According to a psychologist's theory, once a memory was thought of as a thought circuit by synapses in the brain, when the same situation was encountered again, even after training to correct it, the thought circuit automatically acted It seems to repeat the same mistake. In any case, even if the attention is made at every performance mistake as in the above-mentioned Patent Document 1, or the part where there are many performance mistakes is repeatedly practiced as in the Patent Document 2, the same performance mistake is then performed. There is no guarantee that you will not commit.
The present invention is to solve such a conventional problem, and it is predicted in advance that a wrong performance will be performed instead of notifying the performer carefully after the wrong performance. Then, the performance practice can be improved efficiently by notifying the performer of that fact immediately before the performance.

The performance practice device according to claim 1 is composed of a plurality of phrases, and each piece of song data includes a plurality of alternately arranged event data corresponding to pitches and time data corresponding to the event data. A song memory to be stored; a storage means having a storage area corresponding to each phrase; a keyboard for designating a pitch; and a mode setting means for setting one of the first mode and the second mode by an external operation; Then, when the first mode is set by the mode setting means, among the plurality of phrases constituting the song data stored in the song memory, the phrase having the same event data array is searched, a first search means for storing the common data to the storage area of said storage means corresponding to s the retrieved same phrase husband, said mode setting It means a result, when the second mode is set, as well as specify the phrase that constitutes the music data stored in the music memory sequentially, to the corresponding event data belonging to the specified phrase to the event data Reading means that sequentially reads at timing based on time data, and whether or not the same pitch as the pitch corresponding to the event data is specified on the keyboard at the timing when the event data is read by the reading means When the determination means determines that the same pitch is not designated by the determination means, the same phrase as the phrase to which the read event data belongs is stored in the storage means While searching based on common data, the storage means corresponding to the searched phrase Second search means for storing data representing performance mistakes for the area, and at the timing when all the event data included in the phrase is read by the reading means, the phrase corresponding to the phrase to be read next When data indicating a performance error is stored in the storage unit area, the display unit is configured to include a warning display unit that displays a warning on a predetermined display unit.

The performance practice processing program according to claim 2 is composed of a plurality of phrases, and each phrase includes a plurality of alternately arranged event data corresponding to a pitch and time data corresponding to the event data. A music memory for storing data, a storage means having a storage area corresponding to each phrase, and a keyboard for designating a pitch. A mode setting step for setting to any one of the second modes, and when the first mode is set, an array of event data among a plurality of phrases constituting the song data stored in the song memory is While searching for the same phrase, common data is stored in the storage area of the storage means corresponding to each of the searched same phrases. A first search step of憶, when the second mode is set, along with sequentially designates the phrases constituting the music data stored in the music memory, the event data belonging to the designated phrase Whether a pitch that is the same as the pitch corresponding to the event data is specified on the keyboard at the readout step of sequentially reading at the timing based on the time data corresponding to the event data and the timing at which the event data is read A determination step for determining whether or not the same pitch as the phrase to which the read event data belongs is determined in the determination step for determining whether or not the same pitch is specified. A search is performed based on the data, and an operation is performed on the area of the storage means corresponding to the searched phrase. A performance error is indicated in the area of the storage means corresponding to the phrase to be read next at the timing when the second search step for storing data indicating a mistake and all event data included in the phrase are read. When data is stored, a warning display step for executing warning display on a predetermined display means is executed.

  According to the performance practice device and performance practice processing program of the present invention, it is possible to efficiently improve performance practice by calling attention to a part similar to a part that has been mistakenly played before the performance. The effect of being able to be obtained.

Embodiments of a performance practice device according to the present invention will be described below with reference to the drawings, taking an electronic keyboard instrument as an example.
FIG. 1 is a block diagram illustrating a configuration of an electronic keyboard instrument in the embodiment. The CPU 1 is connected to the keyboard 3, the switch unit 4, the ROM 5, the RAM 6, the display unit 7, the tone generator 8, the music memory 9, and the MIDI interface (MIDI I / F) 10 via the system bus 2. Commands and data are exchanged between them to control the electronic keyboard instrument.

  The keyboard 3 inputs pitch and velocity data to the CPU 1 in accordance with the performance operation. Although not shown in the figure, each key of the keyboard 3 is provided with an LED (light emitting diode) for guiding the performance of the practice song. The switch unit 4 includes a switch group such as a power switch, a start switch, a mode switch, and a tone color setting switch, and inputs a corresponding command to the CPU 1 in accordance with the operation of each switch. The ROM 5 stores in advance a performance practice processing program executed by the CPU 1 and other control programs, and initial data at initialization when the power switch is turned on. The RAM 6 is a work area of the CPU 1 and is provided with areas for registers, flags, and pointers (variables) for storing data processed by the CPU 1. The display unit 7 displays a menu, which is an initial screen, a song name of a practice song, and other data screens according to display control of the CPU 1, and also displays a musical score, a performance warning screen, and the like during performance. To do. The sound source 8 reads waveform data from a waveform memory (not shown) in accordance with the sound generation instruction and musical tone data from the CPU 1, and causes the speaker 13 to generate sound via the D / A conversion circuit 11 and the sound system 12.

  The song memory 9 stores a plurality of song data for performance practice in units of phrases. The song data is composed of sequence data in which time data and event data are alternately arranged. In this embodiment, the event data is constituted by guide data for guiding performance by causing the LED of the key corresponding to the pitch to emit light. In this embodiment, the length of one phrase is composed of one measure, but it may be composed of a plurality of measures. The MIDI interface 10 receives the same format as the music data in the music memory 9 from an external MIDI device.

Next, the operation of the electronic keyboard instrument of FIG. 1 will be described with reference to the flowcharts of the CPU 1 shown in FIGS.
FIG. 2 is a flowchart of the main routine of the CPU 1. First, after predetermined initialization (step SA1), the mode flag MODE is reset to 0 (step SA2). Thereafter, the loop processing after step SA3 is executed. In this loop processing, it is determined whether or not MODE is 0 (step SA3). If it is 0, setting processing is executed (step SA4). On the other hand, if MODE is 1, performance processing is executed (step SA5). After the setting process or performance process, a mode change process (step SA6) and other processes are executed (step SA7).

  FIG. 3 is a flowchart of the setting process at step SA4 in the main routine of FIG. Variables F and n for designating phrases are both set to 1 (step SB1), and in order to search for the same phrase, all the flags RF (all) indicating the reference phrase to be searched and the phrase to be searched are set. It is cleared to 0 (unsearched) (step SB2). Next, the loop processing from step SB3 to step SB10 is executed.

  In this loop processing, it is determined whether or not RF (F) corresponding to the variable F indicating the reference phrase to be searched is 0 (not searched) (step SB3), and RF (F) is 0. Is determined whether or not RF (F + n) corresponding to the variable (F + n) indicating the phrase to be searched is 0 (not searched) (step SB4). If RF (F + n) is 0, it is determined whether or not the F-th phrase and (F + n) -th phrase of the music (M) specified by the variable M are the same (step SB5). If the two phrases are the same, the value of F is stored in RF (F) and RF (F + n) (step SB6). For example, when F = n = 1, a value of 1 is stored in RF (1) and RF (2). This indicates that the second phrase is the same as the first phrase.

  After storing the value of F in RF (F) and RF (F + n) in step SB6, or when the phrases of RF (F) and RF (F + n) are not the same in step SB5, or in step SB4, RF (F + n ) Is already 1 (searched), the value of the variable n is incremented (step SB7). And it is discriminate | determined whether the value of (F + n) exceeded the number of phrases of the music (M) (step SB8). That is, it is determined whether or not the search target phrase to be compared with the phrase of RF (F) remains in the song (M). If the search target phrase still remains, the process proceeds to step SB4, and the loop processing up to step SB8 is repeated.

In step SB8, when the value of (F + n) exceeds the number of phrases of music (M), the value of F is incremented and the value of n is set to 1 (step SB9). And it is discriminate | determined whether the value of F exceeded the number of phrases of the music (M) (step SB10). If the value of F does not exceed the number of phrases of the song (M), the process proceeds to step SB3 and the loop process up to step SB10 is repeated. That is, while sequentially specifying the next phrase, a loop process is performed to determine whether there is another phrase that is the same as the specified phrase.
In step SB10, when the value of F exceeds the number of phrases of the song (M), that is, when all the searches for the same phrase in the song (M) are completed, the process returns to the main routine of FIG.

  FIG. 4 is a flowchart of the mode change process in step SA6 in the main routine. It is determined whether or not the mode switch is turned on (step SC1). When this switch is turned on, it is determined whether or not the mode flag MODE is 0 (step SC2). If MODE is 0, it is set to 1 (step SC3), and if MODE is 1, it is reset to 0 (step SC4). That is, the mode switch is a toggle switch, and the value of MODE is inverted every time it is turned on. After MODE is set to 1 or reset to 0, or when the mode switch is not on in step SC1, the process returns to the main routine of FIG.

5 to 8 are flowcharts of the performance process of step SA5 in the main routine of FIG. In FIG. 5, it is determined whether or not the start switch is turned on (step SD1). When this switch is turned on, the value of the flag STF is inverted (step SD2). Then, it is determined whether the inverted STF is 1 (performance start) (step SD3). When STF is 1, the variable F indicating the reference phrase to be searched is set to 1 (step SD4), and the F-th phrase, that is, the first address of the first phrase is set in the register AD (step SD5). Next, time data is read from the AD address (step SD6), and the time data is stored in the register T (step SD7). Thereafter, the timer interrupt is permitted and time counting is started (step SD8).
If the inverted STF is 0 (stop performance) in step SD3, the LED of each key on the keyboard 3 is turned off and the guide display is stopped (step SD9). Further, the timer interrupt is prohibited and the time count is stopped (step SD10), and all the flags K (all) for warning the performer are reset to 0 (step SD11).
After starting the time count in step SD8 or resetting K (all) in step SD11, the process returns to the main routine of FIG.

  If the start switch is not turned on in step SD1 in FIG. 5, it is determined whether or not STF is 1 (during performance) in the flowchart in FIG. 6 (step SD12). If STF is 1, it is determined whether or not the timer has counted up to a predetermined value (step SD13). When counting to a predetermined value, the timer count value is cleared to 0 (step SD14), and the value of the register T is decremented (step SD15). The value to be decremented is the minimum unit time of progression of the music, and corresponds to, for example, the length of a 96th note.

  Next, as a result of decrementing, it is determined whether or not the value of T has reached 0 (step SD16). When the value of T has reached 0, that is, when the time data stored in T has elapsed. Advances the address of AD (step SD17). Then, it is determined whether or not the AD address is larger than the final address of the F-th phrase (step SD18). That is, it is determined whether or not all the event data of the Fth phrase has been read. If the AD address is less than or equal to the final address of the F-th phrase and all the event data of the F-th phrase has not been read, the data is read based on the AD (step SD19), and the type of the data is time data or guide It is determined which data is the data (step SD20). If the data type is guide data, a guide display for causing the LED of the corresponding key to emit light is performed based on the guide data (step SD21), and the process proceeds to step SD17 to advance the AD address. On the other hand, if the data type is time data, the data is stored in the register T (step SD22).

  If the AD address is larger than the final address of the F-th phrase in step SD18, all the data of the phrase has been read out, so that the value of the variable F is incremented to designate the next phrase (step SD23). . And it is discriminate | determined whether the value of F exceeded the number of music phrases (step SD24). When the value of F exceeds the number of song phrases, that is, when all data of the song are read, the STF is reset to 0 (step SD25), and the process proceeds to step SD9 in FIG. 5 to stop the guide display. . Further, the time count is stopped (step SD10), all the warning flags K (all) are cleared to 0 (step SD11), and the process returns to the main routine of FIG.

When STF is 0 in step SD12 of FIG. 6, when the timer is not counting a predetermined value in step SD13, when the value of T is not decremented to 0 in step SD16, or in step SD26, the time data is After storing in the register T, in any case, the process proceeds to the flowchart of FIG.
It is determined whether or not there is a key depression on the keyboard 3 (step SD27). If there is no key depression, it is determined whether or not there is a key release (step SD28). When the key is released, the sound source 8 is instructed to mute (step SD29), and the process returns to the main routine of FIG.

  On the other hand, when a key is pressed, a sound generation instruction is given to the sound source 8 (step SD30). Next, the key number pressed is compared with the guide data (step SD31). Then, it is determined whether or not the key number pressed is inconsistent with the guide data (step SD32). When the key number pressed and the guide data match, the process returns to the main routine. When the key number does not match, the flag M (F) indicating the wrong performance of the phrase F is set to 1 and the variable n is set to 1. Set (step SD33). Next, it is determined whether or not the variable (F + n) for searching for the same phrase as the phrase F is equal to or less than the number of song phrases (step SD34). That is, it is determined whether or not the (F + n) -th phrase to be searched for which is the same as the F-th phrase with a wrong performance is in the song phrase.

  If the variable (F + n) exceeds the number of song phrases, the search target phrase is not in the song phrase, so the process returns to the main routine. If this variable is less than or equal to the number of song phrases, the (F + n) th phrase is Since it remains in the song data, it is determined whether or not RD (F + n) is F (step SD35). That is, it is determined whether or not the (F + n) -th phrase is the same as the F-th phrase with a wrong performance. If they are the same, the flag K (F + n) indicating the performance attention target is set to 1 (step SD36). After setting this flag to 1 or when the (F + n) -th phrase is not the same as the F-th phrase in step SD35, the value of n is incremented (step SD37), and the process proceeds to step SD34. Then, the loop processing up to step SD37 is repeated to search for the same phrase as the F-th phrase.

  In step SD24 of FIG. 6, when the value of the variable F exceeds the number of song phrases, that is, when the search for the same phrase as all of the wrong phrases is completed, the display unit 7 in the flowchart of FIG. It is determined whether or not the previous caution screen is displayed (step SD38). If the caution screen is displayed, the caution screen is deleted (step SD39). Next, it is determined whether or not the previous performance error flag M (F-1) is 1 (step SD40). If this flag is 1, it is reset to 0 (step SD41). That is, the (F-1) -th phrase that has been mistakenly played last time may be played correctly next time, so it is necessary to reset the flag M (F-1). Next, it is determined whether or not K (F) is 1 (step SD42). When this flag is 1, a caution screen is displayed on the display unit 7 (step SD43). After displaying the caution screen or when K (F) is 0 and the caution screen is not displayed, the start address of the F-th phrase is stored in the register AD (step SD44), and the process proceeds to step SD19 in FIG. Then, reading of data in the Fth phrase is started.

As described above, according to this embodiment, the CPU 1 determines, for each phrase of the practice song, whether the practice song played by the keyboard 3 is a correct performance or an incorrect performance. If there is another phrase that is the same as that phrase, and if there is a phrase that is identical to the wrong phrase as a result of the search, the performance of the same phrase is When it is performed, a warning that the phrase has been played wrongly before is displayed on the display unit 7.
Therefore, it is possible to improve the performance practice efficiently by calling attention to the same phrase that has been played wrongly before the performance.

In the above embodiment, attention is urged for the same phrase as the phrase that has been played wrongly before. However, as a modification of the embodiment, the phrase that is substantially the same as the wrong phrase is searched. Also good. For example, when only one note is different from a previously wrongly played phrase, even when the octave is different, or when only the sound length is different, attention is drawn to the phrase.
Therefore, it is possible to improve the performance practice more efficiently by calling attention to a phrase that is substantially the same as a phrase that has been played in error before the performance.

As another variation, if there are multiple types of phrases that have been played incorrectly in the past, and the musical elements common to the phrases are included, the phrase including the musical elements is searched. You may make it the structure to carry out. For example, if the phrase you played wrong before is the same as your fingering, if the staccato, slur, accent, etc. are the same, if the sharp or flat accidental symbols are the same, the effect is the same In some cases, call attention to the phrase.
Therefore, it is possible to improve performance practice more efficiently by calling attention immediately before the performance of a phrase containing musical elements common to a plurality of types of phrases that have been played wrongly before. .

  In the above-described embodiment, the invention of the apparatus in which the CPU 1 executes the performance practice processing program stored in advance in the ROM 5 has been described. However, the present invention is realized by a system combining a general-purpose personal computer and a keyboard apparatus. Is also possible. That is, a performance practice processing program recorded on a storage medium such as a flexible disk (FD), CD, or MD is installed on a hard disk of a personal computer, or a performance practice processing program downloaded from a network such as the Internet is installed. It is also possible for the CPU of the personal computer to execute the program. In this case, the invention of the program and the invention of the recording medium on which the program is recorded can be realized.

That is, the performance practice processing program according to the present invention is:
A first step for determining, for each phrase of the practice song, whether the performance of the practice song is a correct performance or an incorrect performance, and a phrase identical to the wrong phrase determined by the first step A second step of searching for the presence or absence of the other, and when the same phrase searched in the second step is played, the phrase related to the performance has previously been a wrong phrase And a third step of displaying a warning to the effect on a predetermined display means.

The second step searches for a phrase that is substantially identical to the wrong phrase determined by the first step.
In the case where there are a plurality of types of wrong phrases determined in the first step and the second step includes musical elements common to the plurality of types of phrases, Search for other phrases that contain the element.

The block diagram which shows the structure of the electronic keyboard musical instrument in embodiment. The flowchart of the main routine of CPU in FIG. The flowchart of the setting process in the main routine of FIG. The flowchart of the mode change process in the main routine of FIG. The flowchart of the performance process in the main routine of FIG. The flowchart of the performance process following FIG. The flowchart of the performance process following FIG. The flowchart of the performance process following FIG.

Explanation of symbols

1 CPU
2 System bus 3 Keyboard 4 Switch section 5 ROM
6 RAM
7 Display unit 8 Sound source 9 Song memory 10 MIDI interface 11 D / A conversion circuit 12 Sound system 13 Speaker

Claims (2)

A song memory configured to store song data composed of a plurality of phrases, and each of the phrases corresponding to the pitch and event data corresponding to the pitch and time data corresponding to the event data are alternately arranged;
Storage means having a storage area corresponding to each of the phrases;
A keyboard for designating the pitch, and mode setting means for setting to either the first mode or the second mode by external operation;
When the first mode is set by the mode setting means, a phrase having the same sequence of event data is searched for from a plurality of phrases constituting the song data stored in the song memory. First search means for storing common data in a storage area of the storage means corresponding to each searched identical phrase;
When the second mode is set by the mode setting means, phrases constituting the song data stored in the song memory are sequentially designated, and event data belonging to the designated phrase is designated as the event data. Read means for sequentially reading at a timing based on time data corresponding to
Determination means for determining whether or not the same pitch as the pitch corresponding to the event data is specified on the keyboard at the timing when the event data is read by the reading means;
When it is determined by the determination means that the same pitch is not designated, the same phrase as the phrase to which the read event data belongs is based on the common data stored in the storage means. A second search means for searching and storing data representing a performance error in an area of the storage means corresponding to the searched phrase;
When data indicating a performance error is stored in the area of the storage means corresponding to the phrase to be read next at the timing when all the event data included in the phrase is read by the reading means. Warning display means for displaying a warning on the display means,
A performance practice device with A song memory that stores song data in which a plurality of phrases are arranged alternately with event data corresponding to the pitch and time data corresponding to the event data, and corresponding to each phrase. A computer having a storage means having a storage area and a keyboard for specifying a pitch, and used as a performance practice device;
A mode setting step for setting to either the first mode or the second mode by an external operation;
When the first mode is set, the phrase having the same sequence of event data is searched for from the plurality of phrases constituting the song data stored in the song memory, and the searched same phrase A first search step for storing common data in a storage area of the storage means corresponding to each;
When the second mode is set, phrases constituting the song data stored in the song memory are sequentially designated, and event data belonging to the designated phrase is set as time data corresponding to the event data. A read step for sequentially reading at a timing based on
A determination step of determining whether or not the same pitch as the pitch corresponding to the event data is designated on the keyboard at the timing when the event data is read;
When it is determined that the same pitch is not designated, the same phrase as the phrase to which the read event data belongs is searched based on the common data stored in the storage means, A second search step of storing data representing a performance error in the area of the storage means corresponding to the searched phrase;
When all event data included in the phrase is read out and data indicating a performance error is stored in the area of the storage means corresponding to the phrase to be read next, the predetermined display means A performance practice processing program for executing a warning display step for displaying a warning for the player.

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