JP4877611B2 - Performance practice device and performance practice program - Google Patents

Description

  The present invention relates to a performance practice device and a performance practice program suitable for use in, for example, an electronic musical instrument.

  2. Description of the Related Art A performance practice device that reproduces music data of a practice song and allows a user to practice a performance operation is known. As an apparatus of this type, for example, in Patent Document 1, a piece of music data for one song is compared with performance data input in accordance with a user's performance operation, and a mismatched portion of both data is extracted. Repeat the data extraction part and compare it with the performance data. When a match between the two data is detected, stop the output of the extraction part and output the song data for one song. What is made to practice repeatedly until it becomes possible is disclosed.

JP-A-5-297794

By the way, the device disclosed in the above-mentioned patent document 1 is designed to be able to play the entire tune completely by repeatedly practicing until it becomes possible to perform without mistaken parts (bars) that have been mistakenly performed. If it is a practice song that includes measures that are repeatedly played according to (repeat mark), the number of times the measure that is not played repeatedly is reduced, resulting in a problem that the entire song cannot be practiced evenly.

Therefore, the present invention has been made in view of such circumstances, and an object thereof is to provide a performance practice device and a performance practice program that can practice the entire song evenly even if it is a practice song including a repetitive symbol. Yes.

  In order to achieve the above object, according to the first aspect of the present invention, there is provided music data storage means for storing music data representing each sound constituting a music, including repetitive symbols representing measures to be repeatedly played, and the music data storage. A means for counting the number of times of practice for each measure of the song data with reference to repetition symbols in the song data stored in the means, and a maximum practice from the number of times of practice for each measure counted by the counting means A detecting means for detecting the number of times, and an extraction for extracting a measure having a number of practice less than the maximum number of practice based on the difference between the maximum number of times of practice detected by the detecting means and the number of times of practice for each measure counted by the counting means For each measure extracted by the means and the extracting means, an instruction is given to execute performance practice for the number of times corresponding to the difference between the number of times of practice for that measure and the maximum number of times of practice detected by the detecting means. To; and a learning instruction means.

According to the second aspect of the present invention, the music data storage means stores the music data storage means for storing the music data representing each sound constituting the music, including repetitive symbols representing measures to be repeatedly played. In addition, a counting step of counting the number of times of practice for each measure of the song data with reference to the repetition symbol in the song data, and the maximum number of times of practice is detected from the number of times of practice for each measure counted in the counting step An extraction step for extracting a measure with less practice number than the maximum practice number based on a difference between the maximum practice number detected by the detection step and the practice number for each measure counted by the counting step; For each measure extracted in the extraction step, this corresponds to the difference between the number of times of practice for that measure and the maximum number of times of practice detected in the detection step. To characterized in that to perform the exercise instruction step for instructing the execution of the performance practice of a few minutes.

  In the present invention, the entire song can be practiced evenly even if it is a practice song including a repetition symbol.

Embodiments of the present invention will be described below with reference to the drawings.
[First embodiment]
A. Configuration FIG. 1 is a block diagram showing a configuration of a performance practice device 10 according to the first embodiment of the present invention. In this figure, an electronic musical instrument 20 includes a keyboard, and performance data generated in response to a user's performance operation using the keyboard is MIDI output. The performance practice apparatus 10 connected to the electronic musical instrument 20 via MIDI includes a CPU 1, a ROM 2, a RAM 3, an input unit 4, a display unit 5, and a MIDI interface unit 6.

The CPU 1 controls the operation of each part of the apparatus. A characteristic processing operation of the CPU 1 according to the gist of the present invention will be described later. The ROM 2 stores various programs executed by the CPU 1. The various programs referred to here include a main routine, setting process, practice setting process, and practice process, which will be described later.

The RAM 3 includes a work area and a data area. In the work area of the RAM 3, various register / flag data used by the processing of the CPU 1 are temporarily stored. In the data area of the RAM 3, song data SONG [1] to SONG [N] of a plurality of practice songs are stored as shown in FIG.

  The song data SONG is composed of first to nth measure data corresponding to each measure constituting the song. One bar data includes note data representing each sound in the bar, a counter PLAYCNT, and a counter PLAC. The note data includes a repetitive symbol indicating that when it corresponds to a measure section to be played repeatedly. The counter PLAYCNT stores the number of times of practice for the corresponding measure. In other words, it represents the number of times the current measure is practiced when performing repeatedly according to the repetition symbols included in the song. The counter PLAC stores a difference value between the value of the counter PLAYCNT (the number of times of practice for the current measure) and the number of times of practice for the measure that is repeatedly performed the most.

  The input unit 4 includes a keyboard and a mouse and generates an event according to a key input operation or a click event according to a click operation. The display unit 5 is composed of an LCD panel or the like, and displays the operation state of each unit according to a display control signal supplied from the CPU 1 and also displays guidance so that the entire music can be practiced evenly. The MIDI interface 6 takes in performance data sent from the electronic musical instrument 20 under the control of the CPU 1.

B. Operation Next, the operation of the first embodiment will be described with reference to FIGS. In the following, the operation of the main routine will be described first as an overall operation, and then each operation of the setting process, the practice setting process, and the practice process will be described.

(1) Operation of Main Routine When the apparatus power is turned on, the CPU 1 executes the main routine shown in FIG. 3, advances the processing to Step SA1, and executes initialization to initialize each part of the apparatus. When the initialization is completed, the process proceeds to step SA2, and the mode value input by the user operation is determined. If the mode value input by the user operation is “1”, the process proceeds to step SA3, and after performing a setting process described later, the process returns to step SA2. On the other hand, if the mode value input by the user operation is “2”, the process proceeds to step SA4, and after executing a practice process described later, the process returns to step SA2.

(2) Operation of Setting Process Next, the operation of the setting process will be described with reference to FIG. When this process is executed through step SA3 (see FIG. 3) of the main routine described above, the CPU 1 proceeds to step SB1 shown in FIG. 4 and the music data of a plurality of practice songs stored in the data area of the RAM 3 A song selection process for selecting one of SONG [1] to SONG [N] is executed. In step SB1, the measure numbers of the performance order according to the repetition symbols included in the selected music data are stored in the registers ORD [0] to ORD [n].

Subsequently, in step SB2, an initial value “0” is stored in the pointer J. In step SB2, the value of the register ORD [J] designated by the pointer J is stored in the register I. As described above, the register numbers ORD [0] to ORD [n] store the measure numbers in the performance order according to the repetitive symbols included in the song data in step SB1. Therefore, in step SB2, the value of the register ORD [J] designated by the pointer J having the initial value “0”, that is, the measure number to be played first is read from the register ORD [J] and stored in the register I. Hereinafter, the value of register I will be referred to as measure number I.

  Next, in step SB3, the value of the counter PLAYCNT [I] specified by the measure number I, that is, the number of times of practice of the measure specified by the measure number I in the music data is incremented and stepped, and in the subsequent step SB4, The pointer J is incremented. In step SB5, the value of the register ORD [J] designated by the stepped pointer J is updated to the measure number I representing the next performance order. Next, in step SB6, it is determined whether or not the updated measure number I is “0”, that is, the last measure of the song has been reached. If the updated measure number I reaches the last measure of the song, the determination result is “YES”, and a practice setting process described later is executed via step SB7.

  On the other hand, if the updated measure number I has not reached the last measure of the song, the determination result in step SB6 is “NO”, and the process returns to step SB3 described above. Thereafter, by repeating the above steps SB3 to SB6 until the measure number I reaches the last measure of the song, the counter PLAYCNT in the measure data corresponding to the number of times of practice for each measure constituting the song data (see FIG. 2). ).

(3) Operation of Practice Setting Process Next, the operation of the practice setting process will be described with reference to FIG. When this process is executed through step SB7 (see FIG. 4) of the setting process described above, the CPU 1 proceeds to step SC1 shown in FIG. 5 and initializes the maximum practice count MAX to “0”. Subsequently, in step SC2, the initial value “1” is stored in the bar number I. In step SC3, it is determined whether the number of exercises of the counter PLAYCNT [I] specified by the measure number I is greater than the maximum number of exercises MAX.

  If the number of exercises of the counter PLAYCNT [I] specified by the measure number I is less than the maximum number of exercises MAX, the determination result in step SC3 is “NO”, and the process proceeds to step SC5 described later. On the other hand, if the counter PLAYCNT [I] specified by the measure number I is more than the maximum number of exercises MAX, the determination result in step SC3 is “YES”, the process proceeds to step SC4, and the measure number I is specified. The practice number of the counter PLAYCNT [I] is updated as the maximum practice number MAX. Next, at step SC5, the measure number I is incremented and incremented, and at the subsequent step SC6, it is determined whether or not the incremented measure number I is smaller than the number of measures of the song.

  If the incremented bar number I is smaller than the number of bars in the song, the determination result in step SC6 is “YES”, and the process returns to step SC3. Thereafter, by repeating the above-described steps SC3 to SC6 until the incremented measure number I exceeds the number of measures of the song, the number of times of practice of the measure with the most practice number in the song (the value of the counter PLAYCNT [I]) is obtained. The maximum practice number MAX is registered.

  When the incremented measure number I exceeds the number of measures in the song, the determination result in step SC6 is “NO”, and the process proceeds to step SC7. In step SC7, the initial value “1” is stored in the measure number I. Subsequently, at step SC8, a difference value (MAX−PLAYCNT [I]) between the number of exercises of the counter PLAYCNT [I] specified by the measure number I and the maximum number of exercises MAX (MAX−PLAYCNT [I]) is set to the counter PLAC specified by the measure number I. Store in [I]. Thereafter, the process proceeds to step SC9, where the bar number I is incremented and stepped. In step SC10, it is determined whether or not the incremented measure number I is smaller than the number of measures in the song.

If the incremented bar number I is smaller than the number of bars in the song, the determination result in step SC10 is “YES”, and the process returns to step SC7. Thereafter, the above-described steps SC7 to SC10 are repeated until the incremented measure number I exceeds the number of measures in the song, whereby the number of exercises of the counter PLAYCNT [I] specified by the measure number I and the maximum practice number MAX are determined. The difference value (MAX-PLAYCNT [I]) is sequentially stored in the counter PLAC [I] specified by the measure number I. When the incremented measure number I exceeds the number of measures in the song, the determination result in step SC10 is “NO”, and the present process ends.

(4) Specific Operations of Setting Process and Practice Setting Process Next, specific operations of the setting process and the practice setting process described above will be described. It is assumed that the music data selected in the setting process is composed of the first bar to the eighth bar and a repetition symbol is provided in the fourth bar, for example, as in the score shown in FIG. Then, in the setting process, the number of exercises (the number of performance exercises) for each measure is stored in the counters PLAYCNT [1] to PLAYCNT [8] (see FIG. 7A) corresponding to the first to eighth measures, respectively. Is done. This indicates that the first to fourth measures are played twice, and the fifth to eighth measures are one performance.

  In the practice setting process, a difference value (MAX−PLAYCNT [I]) between the number of exercises of the counter PLAYCNT [I] specified by the measure number I and the maximum number of exercises MAX (MAX−PLAYCNT [I]) is used as the counter PLAC specified by the measure number I. Since the data is stored in [I], as shown in FIG. 7B, the counters PLAC [1] to PLAC [4] corresponding to the first bar to the fourth bar have “0” and the fifth bar to the fourth bar. “1” is stored in the counters PLAC [5] to PLAC [8] corresponding to 8 bars. This indicates that the number of times of practice in the fifth bar to the eighth bar is one less than that in the first bar to the fourth bar.

(5) Operation of Practice Process Next, the operation of the practice process will be described with reference to FIG. When this processing is executed through step SA4 (see FIG. 3) of the main routine described above, the CPU 1 proceeds to step SD1 shown in FIG. 8 and executes performance practice processing. In the performance practice process, for example, the note data included in the measure data is compared with the performance data input in accordance with the performance operation, and when the two data match, the note data of the next measure is read, while the discrepancy is found. In some cases, the note data of the same bar is read out again, and a process of proceeding to the next bar is performed after repeatedly practicing until it becomes possible to play without missing a bar that has been missed.

  When such performance practice processing is performed on, for example, the music data of the score shown in FIG. 6, as described above, the performance is repeated twice in the first bar to the fourth bar, and once in the fifth bar to the eighth bar. It will be a performance. In step SD2, a guidance message for instructing how many times to practice a measure with a small number of exercises is displayed on the display unit 5 based on the value of the counter PLAC included in each measure data.

For example, in the example shown in FIG. 7A, the number of exercises in the fifth bar to the eighth bar is one less than that in the first bar to the fourth bar. Then, a guidance message “Let's practice bars 5, 6, 7, and 8 again” is displayed. Thereafter, the process proceeds to step SD3, and the performance practice process for the measure designated in step SD2 is executed.

Next, in step SD4, it is determined whether or not the performance practice for the indicated measure has been completed. The judgment result is “NO” and the above steps SD3 to SD4 are repeated until the practice of the instructed measure is completed. Then, when the performance practice of the specified measure is completed, the determination result in step SD4 is “YES”, and the present process is completed.

  As described above, in the first embodiment, the number of times of practice for each measure constituting the song data is counted according to the repetition symbol included in the song data, and the maximum number of times of practice among the counted number of practice for each measure is determined. To detect. Based on the difference between the detected maximum number of exercises and the number of exercises for each measure, a measure with less number of exercises than the maximum number of exercises is extracted, and the number of exercises corresponding to the difference with the maximum number of exercises for the extracted measure is extracted. Therefore, it is possible to practice the entire song even if it is a practice song including a repetition symbol.

  In the first embodiment described above, the number of times of practice of measures other than the section that is repeatedly played by the repetition symbol is increased. However, the present invention is not limited to this. For example, only when the performance is mistaken outside the section that is repeatedly played, It is possible to increase the number of times of practice in the section where the performance is wrong. Moreover, it is good also as an aspect which carries out performance practice so that the measure with few practice frequency may be the same as the practice frequency of another measure among the counted practice times of each measure.

[Second Embodiment]
In the first embodiment described above, the practice setting process corresponding to music data including a normal repetition symbol is described. In the second embodiment, the operation of the practice setting process corresponding to music data including a parenthesis repetition symbol is described. Will be described. FIG. 9 is a flowchart showing the operation of the practice setting process according to the second embodiment.

As in the first embodiment described above, when this process is executed via step SB7 (see FIG. 4) of the setting process, the CPU 1 proceeds to step SE1 shown in FIG. 9, and sets the maximum practice count MAX to “0”. Initialize to. Subsequently, in step SE2, the initial value “1” is stored in the bar number I. In step SE3, it is determined whether or not the number of exercises of the counter PLAYCNT [I] designated by the measure number I is greater than the maximum number of exercises MAX.

  If the number of exercises of the counter PLAYCNT [I] specified by the measure number I is less than the maximum number of exercises MAX, the determination result in step SE3 is “NO”, and the process proceeds to step SE5 described later. On the other hand, if the counter PLAYCNT [I] specified by the measure number I is more than the maximum number of exercises MAX, the determination result in step SE3 is “YES”, the process proceeds to step SE4, and the measure number I is specified. The number of exercises of the counter PLAYCNT [I] is updated as the maximum number of exercises MAX. Next, at step SE5, the measure number I is incremented and incremented, and at the subsequent step SE6, it is determined whether or not the incremented measure number I is smaller than the number of measures of the song.

  If the incremented measure number I is smaller than the number of measures in the song, the determination result in step SE6 is “YES”, and the process returns to step SE3. Thereafter, by repeating the above steps SE3 to SE6 until the incremented measure number I exceeds the number of measures in the song, the practice number of the measure with the most practice number in the song (the value of the counter PLAYCNT [I]) is obtained. The maximum practice number MAX is registered.

  When the incremented measure number I exceeds the number of measures in the song, the determination result in step SE6 is “NO”, and the process proceeds to step SE7. In step SE7, the initial value “1” is stored in measure number I. Subsequently, in step SE8, a difference value (MAX−PLAYCNT [I]) between the number of exercises of the counter PLAYCNT [I] specified by the measure number I and the maximum number of exercises MAX (MAX−PLAYCNT [I]) is set to the counter PLAC specified by the measure number I. Store in [I].

  Next, in step SE9 shown in FIG. 10, the difference value stored in the counter PLAC [I] specified by the bar number I is larger than “0” and parentheses are included in the bar data including the counter PLAC [I]. It is determined whether or not there is a repeated symbol, that is, whether or not it is a measure having less number of exercises than the maximum number of exercises MAX and having a repeated symbol with parentheses. If it is not the corresponding measure, the determination result is “NO”, and the process proceeds to Step SE15 described later.

  On the other hand, if the number of exercises is less than the maximum number of exercises MAX and the measure has parenthesized repetition symbols, the determination result in step SE9 is “YES” and the process proceeds to step SE10. In step SE10, an initial value “0” is stored in the pointer J. Next, in steps SE11 to SE12, the pointer J is incremented until the value of the register ORD [J] matches the current measure number I. That is, the value of the pointer J that specifies the current measure number I is searched.

  If the value of the pointer J specifying the current measure number I is found, the determination result in step SE11 is “YES”, and the process proceeds to step SE13, where 1 is subtracted from the pointer J specifying the current measure number I. Based on the value (J-1), the bar number K specifying the previous bar is read from the register ORD (J-1). In other words, a bar number K is generated that designates the bar immediately preceding the bar having the repetition symbol with parentheses.

  Subsequently, in step SE14, the counter PLAC [K] of the bar immediately preceding the bar having the repetition symbol with parentheses designated by the bar number K is incremented and stepped. As a result, the number of exercises of the measure immediately before the measure having the bracketed repetition symbol is increased by one. Thereafter, the process proceeds to step SE15, and the measure number I is incremented and stepped.

In step SE16, it is determined whether or not the incremented measure number I is smaller than the number of measures in the song. If the incremented bar number I is smaller than the number of bars in the song, the determination result in step SE16 is “YES”, and the process returns to step SE8 (see FIG. 9).

Thereafter, the above steps SE8 to SE16 are repeated until the incremented measure number I exceeds the number of measures in the song, whereby the number of exercises of the counter PLAYCNT [I] specified by the measure number I and the maximum practice number MAX are determined. The difference value (MAX-PLAYCNT [I]) is sequentially stored in the counter PLAC [I] specified by the bar number I, while it is incremented for the counter PLAC of the bar immediately preceding the bar having a bracketed repetition symbol. Then increase the number of exercises by one. When the incremented measure number I exceeds the number of measures in the song, the determination result in step SE16 is “NO”, and the process is terminated.

(4) Specific Operation Next, a specific operation of the second embodiment will be described. The music data selected in the setting process is composed of the first bar to the sixth bar, for example, as in the score shown in FIG. 11, and the fifth parental bar is provided with a repetition symbol in the first parenthesis. Suppose that the 6th measure is provided with a second bracket repeat symbol.

In this case, the order of performance is “first measure” → “second measure” → “third measure” → “fourth measure” → “fifth measure” → “first measure” → “second measure” → “ “3rd measure” → “4th measure” → “6th measure”. That is, since the performance is repeated twice in the first bar to the fourth bar and one performance in the fifth bar and the sixth bar, the counter PLAYCNT [1] to the counter PLAYCNT [1] is based on the same setting process as in the first embodiment. PLAYCNT [6] stores the number of exercises (number of performances) shown in FIG.

  In the practice setting process of the second embodiment, the difference value (MAX−PLAYCNT [I]) between the number of exercises of the counter PLAYCNT [I] designated by the measure number I and the maximum number of exercises MAX (MAX−PLAYCNT [I]) As a result of incrementing the number of times of practice of the bar immediately before the bar having the bracketed repetition symbol while storing in the designated counter PLAC [I], as shown in FIG. The counters PLAC [1] to PLAC [3] corresponding to the bars are “0”, the counter PLAC [4] corresponding to the fourth bar is “2”, and the counters are corresponding to the fifth to sixth bars. “1” is stored in PLAC [5] to PLAC [6]. Thereafter, when the practice process is executed in the same manner as in the first embodiment, for example, in the example shown in FIG. 12A, as shown in FIG. 12B, “4th bar and 5th bar, The guide message “Let's practice again in measures 4 and 6” will be displayed.

  As described above, in the second embodiment, the number of times of practice for each bar constituting the music data is counted according to the repetition symbol included in the music data, and the maximum number of times of practice is calculated from the counted number of times of practice for each bar. To detect. Based on the difference between the detected maximum number of exercises and the number of exercises for each measure, a measure with less number of exercises than the maximum number of exercises is extracted, and the number of exercises corresponding to the difference with the maximum number of exercises for the extracted measure is extracted. On the other hand, since the number of exercises is increased by one for the measure immediately before the measure with a bracketed repetition symbol, practice the entire song even if it is a practice song that includes the bracketed repetition symbol. Is possible.

  Further, in the second embodiment, when the measure with a small number of times of practice is “1 bracket” or “2 brackets”, the practice practice is performed including the preceding measures of “1 bracket” and “2 brackets”. Not only this, but when “1 bracket” and “2 brackets” are in the middle of the song, not only the previous measure but also the subsequent measures of “1 bracket” and “2 brackets” may be practiced. I do not care.

It is a block diagram which shows the structure of 1st Embodiment by this invention. FIG. 3 is a diagram showing a configuration of song data stored in a data area of a RAM 3. It is a flowchart which shows operation | movement of the main routine of 1st Embodiment. It is a flowchart which shows the operation | movement of the setting process of 1st Embodiment. It is a flowchart which shows operation | movement of the practice setting process of 1st Embodiment. It is a score which shows the example of bar composition of the music data containing a repetition symbol. It is a figure for demonstrating the specific operation | movement of 1st Embodiment. It is a flowchart which shows the operation | movement of the practice process of 1st Embodiment. It is a flowchart which shows the operation | movement of the practice setting process by 2nd Embodiment. It is a flowchart which shows the operation | movement of the practice setting process by 2nd Embodiment. It is a musical score which shows the example of bar composition of the music data containing the bracketed repetition symbol. It is a figure for demonstrating the specific operation | movement of 2nd Embodiment.

Explanation of symbols

1 CPU
2 ROM
3 RAM
4 Input unit 5 Display unit 6 MIDI interface unit 10 Performance practice device 20 Electronic musical instrument

Claims (2)

Music data storage means for storing music data representing each sound constituting the music, including repetitive symbols representing measures to be repeatedly played;
Counting means for counting the number of times of practice for each measure of the song data with reference to repetition symbols in the song data stored in the song data storage means;
Detecting means for detecting the maximum number of times of practice from the number of times of practice for each measure counted by the counting means;
Extraction means for extracting a measure with less practice number than the maximum practice number based on the difference between the maximum practice number detected by the detection means and the practice number for each measure counted by the counting means;
For each measure extracted by the extracting means, practice instruction means for instructing execution of performance practice for the number of times corresponding to the difference between the number of times of practice for the measure and the maximum number of times of practice detected by the detecting means. A performance practice device characterized by that. A computer having song data storage means for storing song data representing each sound constituting a song, including a repetitive symbol representing a measure to be repeatedly played,
A counting step of counting the number of times of practice for each measure of the song data with reference to the repetition symbol in the song data stored in the song data storage means;
A detection step of detecting the maximum number of exercises from the number of exercises for each measure counted in the counting step;
An extraction step for extracting measures with less number of exercises than the maximum number of exercises based on the difference between the maximum number of exercises detected by the detection step and the number of exercises for each measure counted by the counting step;
For each measure extracted in the extraction step, a practice instruction step for instructing execution of performance practice for the number of times corresponding to the difference between the practice number of the measure and the maximum number of practice times detected in the detection step is executed. A performance practice program characterized by that.

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