JP3557668B2 - Automatic performance device - Google Patents

Description

[0001]
[Industrial applications]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic performance device having a musical score display, and in particular , adds line feed data to a performance section to be displayed in one line in data for automatic performance in advance, and based on the performance data and the line feed data in the performance section. By displaying a single line of musical score, the musical score display that is easy to see is realized.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a musical score display of an automatic performance device, there are a musical score display device for displaying performance data of a predetermined number of measures as one line, a musical score display device for switching displayed musical scores one by one on a screen basis, and a portion where automatic performance is performed. A device that moves a musical score being displayed so as to come to the center of the screen is known.
[0003]
[Problems to be solved by the invention]
In the above-described single-line display type score display, since the number of measures to be displayed is fixed, the score is not always displayed for each phrase (phrase), and the score is difficult to read. There is. For example, assuming that the number of measures to be displayed is four measures (constant), if the length of the phrase changes like four measures, two measures, four measures, etc., the first four measures are displayed as one phrase. , The phrase of the next two measures will be displayed together with the first half (two measures) of the phrase of the next four measures, and after this, the second half of the phrase of four measures (two measures) and the next phrase Are displayed together, such that are displayed together. For this reason, it is difficult to grasp the contents of the score for each phrase.
[0004]
In addition, the score switching type display has a problem that the score is suddenly changed at the time of switching, so that it is difficult to see the score. There are points.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide a novel automatic performance device that realizes easy-to-see music score display.
[0006]
[Means for Solving the Problems]
A first automatic performance device according to the present invention comprises:
Storage means for storing performance data for automatically performing a desired music piece , wherein a new line data is added to a predetermined performance section in the performance data;
And playing means for automatic performance of the music piece based on said performance data,
A display capable of displaying at least one line of musical score as a musical score of a predetermined length longer than the performance interval as one line of musical score ;
Wherein a display control means for displaying at least one row of the musical score on said display device based on the performance data, examined from the display start position in the performance data whether there is the new line data in the predetermined length play in a section of the If there is line feed data, a one-line score is displayed on the display based on the performance data in the performance section to which the line feed data has been added, and if there is no line feed data, the performance data in the performance section of the predetermined length is displayed. And a display unit for displaying one line of musical score on the display device based on the score .
[0007]
Further, a second automatic performance device according to the present invention includes:
Storage means for storing performance data for automatically performing a desired music;
And playing means for automatic performance of the music piece based on said performance data,
A display capable of displaying a musical score of a performance section of a predetermined length,
Together to display the score of the predetermined length playing sections of on the basis of the performance data to the display device, a display control means for displaying on said display device a location in the automatic performance in score in the display, the automatic performance And updating the display so that the musical score following the musical score being displayed is displayed on the display unit instead of the musical score already played before the middle part.
[0008]
[Action]
According to the first automatic performance device described above, line feed data is added to a predetermined performance section in performance data for automatic performance. The display control means, when displaying a one-line score on the display based on the performance data, checks whether there is line feed data in a performance section of a predetermined length, such as four measures, from the display start position in the performance data. If there is a line feed, a one-line score is displayed based on the performance data in the performance section to which the line feed data is added, and if there is no line feed data, one line of music is displayed based on the performance data in the performance section of a predetermined length. Display the score on the display. Therefore, by adding the line feed data to a desired performance section in advance , the performance section can be displayed as one phrase, and the contents of the musical score can be easily grasped. Line feed data need not be added (stored) for a performance section of a predetermined length.
[0010]
In the first automatic performance apparatus, a plurality of lines of music are displayed, and each time the automatic performance of the first line of music being displayed is completed, a plurality of lines of music next to the first line is displayed. The display may be updated to be displayed. In this way, the contents of the next phrase can be easily recognized while a certain phrase is being played.
[0011]
Further, according to the above-described second automatic performance device, the position where the automatic performance is being performed is displayed in the musical score being displayed , so that it is possible to easily recognize where the performance is being performed. In addition, the display is updated so that the score following the currently displayed score is displayed instead of the already played score before the point where the automatic performance is being performed, so that the switching of the score is smooth and the display score is unnecessary. The subsequent musical score contents can be easily recognized using the portion.
[0012]
【Example】
FIG. 1 shows a circuit configuration of an electronic musical instrument according to an embodiment of the present invention. In this electronic musical instrument, generation of manual performance sounds, generation of automatic performance sounds, musical score display, and the like are controlled by a microcomputer. It has become.
[0013]
A keyboard circuit 12, a switch (SW) circuit 14, a display 16, a central processing unit (CPU) 18, a program memory 20, a working memory 22, a performance data memory 24, a sound source 26, and the like are connected to the bus 10.
[0014]
The keyboard circuit 12 includes a keyboard having a large number of keys, and key operation information is detected for each key.
[0015]
The SW circuit 14 includes various switches arranged on the panel surface of the musical instrument main body. Switches related to the embodiment of the present invention include a music selection SW for automatic performance, a start / stop SW, and the like. I have. In the SW circuit 14, operation information is detected for each switch.
[0016]
The display 16 is capable of displaying a score of one or a plurality of phrases, and is constituted by, for example, a liquid crystal display. The display 16 is installed at a position on the panel surface of the musical instrument main body where the player can easily see.
[0017]
The CPU 18 executes various processes in accordance with programs stored in a memory 20 composed of a ROM (Read Only Memory). Processes related to the embodiment of the present invention will be described later with reference to FIGS. A tempo clock signal is supplied to the CPU 18 from the timer 28 at a predetermined cycle as an interrupt signal, and the CPU 18 starts the interrupt routine of FIG. 5 or FIG. 6 every time the CPU 18 receives the interrupt signal.
[0018]
The working memory 22 is composed of a RAM (random access memory), and includes a storage area used as a register, a flag, and the like when the CPU 18 performs various processes. Registers related to the embodiment of the present invention include a music number register SNG, a run flag RUN, a tempo counter TCNT, and the like.
[0019]
The performance data memory 24 is composed of a ROM (or a RAM) and stores performance data of a large number of music pieces. The performance data of any one of the music pieces can be selected by operating the above-mentioned music selection SW.
[0020]
The sound source 26 includes a number of tone generation channels, and can simultaneously generate a tone signal based on a manual performance and a tone signal based on an automatic performance. A tone signal transmitted from the sound source 26 is supplied to a sound system 30 including an output amplifier, a speaker, and the like, and is converted into a tone.
[0021]
FIG. 2 shows a performance data format for one tune stored in the memory 24. Note data from the first note N ₁ is sequentially arranged according to music progression. Each note data is composed of pitch data PD indicating a pitch and note length data LD indicating a note length. Regarding rests, note data is diverted, and data PD is represented by all bits “0” to indicate that it is a rest, and data LD indicates the rest length. Line feed data SD is arranged at a desired position in the note data array, and end data ED is arranged at the end of the note data array.
[0022]
Line feed data SD is arranged at the end of a performance section to be displayed as one phrase. In this embodiment, since the display 4 bars as one phrase in principle as shown in L _2, L ₃ of FIG. 3 (A), at the end of four bars may not be disposed newline data SD, for example, FIG. 3 two bars as shown in the L ₁ of (a) to the end of the two measures if you want to display as a phrase to place a new line data SD.
[0023]
FIG. 4 shows the flow of the processing of the main routine. In step 40, various registers are initialized. Then, the process proceeds to a step 42.
[0024]
In step 42, the output of the keyboard circuit 12 is checked to determine whether there is a key event (key-on or key-off event) on the keyboard. If the result of this determination is affirmative (Y), key event processing is performed in step 44. That is, the event type is checked, and if it is a key-on event, the pitch data and the key-on signal corresponding to the pressed key are supplied to the sound source 26. As a result, the sound source 26 generates a tone signal having a pitch specified by the pitch data, and this tone signal is output from the sound system 30 as a manual performance sound. On the other hand, if the event is a key-off event, a process of starting attenuation of the tone signal corresponding to the released key is performed.
[0025]
When the process of step 44 is completed or the determination result of step 42 is negative (N), the process proceeds to step 46, and it is determined whether or not the music selection SW has an ON event. If the determination result is affirmative (Y), the number of the selected music piece is set in the register SNG in step 48. As a result, automatic performance of the selected music can be performed.
[0026]
When the processing in step 48 is completed or when the result of the determination in step 46 is negative (N), the process proceeds to step 50, and it is determined whether or not the start / stop SW has an ON event. If this determination result is affirmative (Y), the value of the flag RUN is inverted to 0 if it is 1 and to 1 if it is 0 in step 52. Then, the process proceeds to step 54.
[0027]
In step 54, it is determined whether the value of RUN is 1. If the result of this determination is affirmative (Y), automatic performance start processing is performed in step 56. For example, K is set to a predetermined value in a tempo counter TCNT that counts a tempo clock signal. Then, the process proceeds to step 58.
[0028]
In step 58, the display 16 displays an initial screen. That is, the data of the first three phrases in the performance data of the selected music piece is read out from the memory 24 and displayed on the screen of the display 16 as one line per phrase as shown in FIG. In this case, each phrase is checked to see if line feed data SD is present in four measures, and if so, the part before the line feed data SD is displayed as one phrase, and if not, four measures are displayed as one phrase. In FIG. 3 (A), a phrase _{L 1} is a case with line feed data, phrase _L 2, _{L 3} is a case with no returns data.
[0029]
If the decision result in the step 54 is negative (N), an automatic performance stop process is performed in a step 60. That is, all the automatic performance sound signals being generated are attenuated.
[0030]
When the processing in step 58 or 60 is completed or when the determination result in step 50 is negative (N), other processing (for example, setting processing of tone color, volume, tempo, etc.) is performed in step 62. Then, the process returns to step 42, and the subsequent processing is repeated in the same manner as described above.
[0031]
FIG. 5 shows an interrupt routine for displaying the musical score shown in FIG. 3A. In step 70, it is determined whether the value of the flag RUN is 1 (whether the automatic performance is being performed). If the result of this determination is negative (N), the processing described below is unnecessary, and the process returns to the routine of FIG.
[0032]
If the decision result in the step 70 is affirmative (Y), in a step 71, the value of the counter TCNT is decremented by one. If a value greater than 0 is set as the predetermined value K in the counter TCNT in step 56 of FIG. 4, the automatic performance can be started with a predetermined time delay from the start of the musical score display. After step 71, the process moves to step 72.
[0033]
At step 72, the performance data is read from the memory 24. As for the reading of the performance data, the pitch data PD and the note length or the rest length data LD are read out for the note or rest data, and all of the line feed data SD and the end data ED are read out alone.
[0034]
Next, in step 74, it is determined whether the read data is end data ED. If the determination result is affirmative (Y), the process returns to the routine of FIG. Normally, the end data cannot be read at the start of the automatic performance. Therefore, in such a case, the determination result of step 74 is negative (N), and the process proceeds to step 76.
[0035]
In step 76, it is determined whether the read data is note data or rest data and whether the note timing (note length or rest length) ends. Here, whether or not the end timing of the note length is determined by whether or not the value of the counter TCNT is 0.
[0036]
For example, the phrase L ₁ of FIG. 3 (A), since for the first note S ₁ there is no note length before, predetermined value K which is set in the counter TCNT at step 56 in FIG. 4 the previous note length of Used instead. That is, the musical tone corresponding to the first note S ₁ is generated when the predetermined value K is 0 as described below.
[0037]
After read out the pitch data and Fucho data corresponding to the first note S ₁ in step 72, when it has come first in step 76, the determination result is negative the value of the counter TCNT is not 0 (N), and the step Move to 78.
[0038]
In step 78, it is determined whether the automatic performance of the first one phrase _{L 1} of the three phrases _L 1 ~L ₃ in the display has been completed. When one phrase has four measures, the end of the performance of one phrase corresponds to the end of the performance of four measures. When one phrase is determined according to the line feed data SD, it corresponds to the reading of the line feed data SD. When the determination result of the first note S ₁ for step 76 came to step 78 as being negative (N), the determination result of step 78 is negative (N), and the process returns to the routine of FIG.
[0039]
Thereafter, when the value of the counter TCNT becomes 0 due to several interruptions, the determination result in step 76 becomes affirmative (Y), and the performance reproduction process is performed in step 80. In this processing, the data is checked for either note data or rest data. If the data is note data, the pitch data of the note data is supplied to the sound source 26 to generate a corresponding tone signal. No processing. When the determination result of the first note S ₁ with respect to step 76 came to step 80 becomes affirmative (Y), the pitch data corresponding to note S ₁ is supplied to the tone generator 26, designated by the pitch data A tone signal is generated from the sound source 26. Then, this musical tone signal is outputted as an automatic performance sound corresponding the sound system 30 to the first note S _1.
[0040]
After step 80, the process returns to step 72, and the performance data is read again. At this time, the pitch data and the note length data corresponding to the second note are read. At this time, the counter TCNT, sets the note length data corresponding to the first note S _1. Therefore, the value of the counter TCNT is no longer 0.
[0041]
Thereafter, when the process proceeds to step 76 via step 74, the determination result is negative (N) because the note length is not the end timing, and the process returns to the routine of FIG. When performed becomes a mark length end timing of the first note S ₁ by several times of interruption, the determination result is affirmative (Y) next to the step 76, the performance reproduction processing as before at step 80. As a result, the sound system 30 outputs an automatic performance sound corresponding to the second note.
[0042]
Thereafter, the same processing as described above is performed for the third note, and when the note length end timing of the second note comes, an automatic performance sound corresponding to the third note is generated in step 80. Then, because the next 4 minutes rest of the third note as shown in the L ₁ shown in FIG. 3 (A) is present, in step 72, rest data and rest corresponding to the 4-minute rest The long data is read. At this time, note length data corresponding to the third note is set in the counter TCNT.
[0043]
Thereafter, when the note length end timing of the third note is reached due to several interruptions, the determination result in step 76 becomes affirmative (Y), and the performance reproduction process is performed in step 80. In this case, since the read data is rest data, the tone generation process is not performed. Then, the process proceeds to step 72, where the performance data is read. At this time, the line feed data following the quarter rest is read. At this time, the value of the counter TCNT is not changed.
[0044]
When the line feed data is read, the determination results in steps 74 and 76 are negative (N), and the flow proceeds to step 78. At step 78, the determination result becomes affirmative (Y) by reading the line feed data, and the routine goes to step.
[0045]
In step 82, the memory 24 is examined to determine whether or not the remaining performance data of the music being played automatically has three or more phrases. In this determination, one phrase is a performance section or four measures specified by the line feed data as described in step 58 of FIG. If the determination result of step 82 is affirmative (Y), the process proceeds to step 84.
[0046]
In step 84, a display update process is performed. In this process, the scores of the three phrases following the phrase for which the automatic performance has been completed are displayed on the screen of FIG. 3A in place of the phrases L ₁ , L ₂ , and L ₃ , respectively. At this time, one phrase is a performance section or four measures specified by the line feed data as described in step 58 of FIG.
[0047]
For example, in FIG. 3 (A), the case where the automatic performance of the phrase _{L 1} is finished, the score of the phrase _{L 2} at the position of _{L 1} is, the score of the phrase _{L 3} at the position of _{L 2,} the position of the _{L 3} the next phrase of the musical score of the phrase L ₃ is displayed, respectively. The next phrase of the phrase L ₃ is a playing interval specified by if any new line data is absent if four bars.
[0048]
When the processing in step 84 is completed or the result of the determination in step 82 is negative (N) (when the number of phrases to be automatically played is within two phrases), the process returns to step 72 to read the performance data. put out. It is read at this time, in the example of FIG. 3 (A), a pitch data and note length data corresponding to the first note S ₂ phrases L ₂ which is displayed at the position of L _1. Therefore, the determination result of step 74 is negative (N), and the routine goes to step 76.
[0049]
In step 76, since the value of the counter TCNT is 0 (the value has not been changed when the line feed data is read), the determination result is affirmative (Y), and the performance reproduction process is performed in step 80. As a result, the sound system 30, automatic performance sound corresponding to the note S ₂ are output.
[0050]
Thereafter, the flow returns to step 72 performs performance data reading, pitch data and note length data corresponding to the next note note S ₂ is read. At this time, the counter TCNT, sets the note length data corresponding to the note _{S 2.} Then, when the process proceeds to step 78 via steps 76 and 78, the determination result is negative (N), and the process returns to the routine of FIG.
[0051]
Thereafter, automatic performance and musical score display proceed in the same manner as described above. Then, when the remaining two phrases in the automatic performance are reached, the result of the determination in step 82 is negative (N), and the process returns to step 72 without performing the display update process.
[0052]
In step 72, pitch data and note length data corresponding to the first note in the phrase before the final phrase are read, and an automatic performance sound corresponding to the pitch data is output in step 80. Then, the automatic performance of the remaining two phrases is performed in the same manner as described above.
[0053]
Finally, when the end data ED is read from the memory 24 in step 72, the determination result in step 74 becomes affirmative (Y), and the process returns to the routine of FIG. Then, when the player turns on the start / stop SW, the value of RUN becomes 0 in steps 50 and 52 in FIG. 4, and the automatic performance is stopped in steps 54 and 60 in FIG. Further, since the value of RUN is 0, the process returns to the routine of FIG. 4 from step 70 in the interrupt routine of FIG. 5, and the processes such as automatic performance and musical score display are not performed.
[0054]
According to the embodiment described above with reference to FIGS. 4 and 5, since the score is displayed for each phrase, it is easy to grasp the content of the score. When there is no line feed data in four measures, four measures are defined as one phrase. Therefore, it is not necessary to store line feed data for four measures, and the storage capacity can be reduced. Furthermore, since the display is updated each time the performance of the first phrase of the three phrases being displayed is completed, the contents of the next phrase can be always recognized on the screen.
[0055]
In the above embodiment , the line feed data is stored. However, as the line feed data, data indicating the number of measures may be stored.
[0056]
FIG. 6 shows an interrupt routine for displaying the musical score shown in FIG. In this example, the line feed data is not stored in the memory 24, and the score of the first to fourth measures of the music to be played is displayed as the initial screen of the display 16 in step 58 in the main routine of FIG.
[0057]
First, in step 90, it is determined whether the value of the flag RUN is 1 (whether the automatic performance is being performed). If the result of this determination is affirmative (Y), the value of the counter TCNT is decremented by one in step 91. Then, the process proceeds to a step 92.
[0058]
In step 92, the performance data is read from the memory 24 in the same manner as described above with reference to FIG. For example, note data (pitch data and note length data) corresponding to the first note of the first measure of the four measures being displayed is read.
[0059]
Next, in step 94, it is determined whether the read data is end data ED. If the note data is read as in the above example, the determination result is negative (N), and the routine goes to step 96.
[0060]
In step 96, the performance reproduction processing is performed in the same manner as described above, on condition that the read data is the note data and the note length end timing. After reading the note data as in the above example, when the value of the counter TCNT becomes 0 due to several interrupts, the sound system 30 outputs an automatic performance sound corresponding to the first note of the first measure. Is done. If the read data is rest data, no processing is performed. Thereafter, the process proceeds to step 98.
[0061]
In step 98, the data being automatically played is displayed in black and white inverted on the screen of the display 16, and the data four bars ahead is displayed at the preceding data display position. However, when the first note of the first measure is automatically played, the first note is simply displayed in black and white inverted on the screen, and the data before that is not displayed.
[0062]
When the process of step 98 is completed, the process returns to the routine of FIG. Also, when the determination result of step 90 is negative (N) or when the determination result of step 94 is positive (Y), the process returns to the routine of FIG.
[0063]
According to the routine of FIG. 6, the musical score is displayed as shown in FIG. In FIG. 3 (B), as an example, after displaying the four measures of L ₂ in FIG. 3 (A), shows a state in which the automatic performance has progressed to a position of the note Q.
[0064]
In FIG. 3 (B), note Q of playing, along with the black-and-white highlighted, instead of playing already sheet music before note Q musical score in Figure 3 L ₃ followed by L ₂ of the (A) display Is done. In this case, the musical score display L ₃ is performed so as to display the note 4 bars destination erase the previous note for each one notes performance start in step 98. For example, when the note Q is displayed in black and white inverted, a note R four bars ahead is displayed instead of the display note P before it.
[0065]
According to the embodiment described above with reference to FIGS. 4 and 6, the part being played can be easily recognized by the black and white inverted display. Also, since the musical score following the currently displayed musical score is displayed one note at a time in place of the already played musical score, there is no delay in the display as in the case of switching one screen at a time. By using the unnecessary portion of the above, the subsequent music content can be recognized in a small display space.
[0066]
In the embodiments of FIGS. 4 and 6, when the screen is large and two or more lines can be displayed, the display may be updated every line. For example, in the case of a two-line display, the display of the first line may be updated while the second line is being played. Also, the display can be updated in bar units.
[0067]
【The invention's effect】
As described above, according to the present invention, if there is line feed data in a performance section of a predetermined length, a one-line musical score is displayed based on the performance data in the performance section to which the line feed data is added, and no line feed data is required. For example, since one line of the score is displayed based on the performance data in the performance section of the predetermined length, the score can be displayed for each phrase, and there is an effect that the easy-to-read score can be realized. In addition, since it is not necessary to store line feed data for a performance section of a predetermined length, there is an advantage that the storage capacity can be reduced.
[0068]
In addition, since the musical score of a plurality of lines is displayed, and the musical score of the next line is displayed after the performance of the musical score of the first line is completed, there is an advantage that the musical connection between the phrases can be easily understood.
[0069]
Furthermore, to display the location of playing the musical score currently displayed, since to display the score following the musical score currently displayed instead of playing already score prior to individual plants, playing progression and subsequent in a small display space There is also an effect that the contents of the musical score can be easily recognized.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a circuit configuration of an electronic musical instrument according to an embodiment of the present invention.
FIG. 2 is a diagram showing a storage data format of a memory 24.
FIG. 3 is a diagram showing a musical score display according to another embodiment.
FIG. 4 is a flowchart showing a main routine.
FIG. 5 is a flowchart showing an interrupt routine for displaying the musical score shown in FIG.
FIG. 6 is a flowchart showing an interrupt routine for displaying the musical score shown in FIG. 3 (B).
[Explanation of symbols]
10: Bus, 12: Keyboard circuit, 14: Switch (SW) circuit, 16: Display, 18: Central processing unit (CPU), 20: Program memory, 22: Working memory, 24: Performance data memory, 26: Sound source , 28: timer, 30: sound system.

Claims (3)

Storage means for storing performance data for automatically performing a desired music piece , wherein a new line data is added to a predetermined performance section in the performance data;
And playing means for automatic performance of the music piece based on said performance data,
A display capable of displaying at least one line of musical score as a musical score of a predetermined length longer than the performance interval as one line of musical score ;
Wherein a display control means for displaying at least one row of the musical score on said display device based on the performance data, examined from the display start position in the performance data whether there is the new line data in the predetermined length play in a section of the If there is line feed data, a one-line score is displayed on the display based on the performance data in the performance section to which the line feed data is added. A display unit for displaying one line of musical score on the display based on the score . Storage means for storing performance data for automatically performing a desired music piece , wherein a new line data is added to a predetermined performance section in the performance data;
And playing means for automatic performance of the music piece based on said performance data,
A display capable of displaying a plurality of lines of music as a single line of music with a predetermined length of the performance section longer than the performance section ;
Display control means for displaying a plurality of lines of scores on the display device based on the performance data , wherein each time the automatic performance is completed for the first line of the displayed plurality of lines, The display is updated so that the score of the next plurality of lines is displayed on the display, and at the time of displaying the score of each line, whether the line feed data is present in the performance section of the predetermined length from the display start position in the performance data. Checking, if there is the line feed data, a score of one line is displayed on the display based on the performance data in the performance section to which the line feed data is added, and if there is no line feed data, the score in the performance section of the predetermined length is displayed. An apparatus for displaying a one-line score on the display unit based on performance data . A storage means for storing performance data for automatic performance of the desired piece of music,
And playing means for automatic performance of the music piece based on said performance data,
A display capable of displaying a musical score of a performance section of a predetermined length ,
Display control means for displaying, on the display, a musical score of the performance section of the predetermined length based on the performance data, and displaying, on the display, a portion of the musical score being displayed on which the automatic performance is being performed. Updating the display so that the musical score following the currently displayed musical score is displayed on the display instead of the musical score already played before the middle position .

Images