JPH0260197B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to a musical score display device for displaying a musical score based on musical instrument performance information, and the present invention relates to a musical score display device for displaying a musical score based on musical instrument performance information. The image is displayed in the following colors. [Prior Art] Music score display devices that receive performance information representing the performance content of a musical instrument such as a piano and display the performance content as a musical score based on this performance information have already been proposed (for example, the same device as the present invention). (See Japanese Patent Application Laid-Open No. 58-216292 by the applicant). However, with this conventional device, data on the strength of keystrokes is not taken into account, and it is not possible to know the strength of keystrokes even by looking at the displayed musical score. For this reason, when evaluating the content of a performance based on the displayed musical score, there was an inconvenience in that it was not possible to judge whether or not the strength of keystrokes or changes in volume were appropriate. [Object of the Invention] An object of the present invention is to provide a novel musical score display device that can display the strength of keystrokes. [Structure and operation of the invention] In the musical score display device according to the present invention, the performance information includes sound intensity information for each performance sound, and a color display device is provided as a musical score display means. When the color display device displays notes for each performance note, each note is colored based on the strength information of the corresponding note. According to the configuration of this invention, the strength of the keystrokes is displayed in color for each note, so the content of the performance, including the strength of the keystrokes and changes in volume, can be easily recognized visually, and the content of the performance can be evaluated. It is convenient when doing so. [Example] FIG. 1 is for explaining an example of musical score display according to the present invention. On the display screen SC of a color CRT (cathode ray tube), for example, a staff staff, treble clef, time signature (4/4 as an example), etc. are displayed in green.
Notes N ₁ , N ₂ , N _{3 .} . . , rests, bar lines, accidentals (sharp, flat, natural), etc. are displayed on the staff according to the contents of manual or automatic piano performance. In this case, N ₁ to _{N 3}
Notes such as , etc. have predetermined colors depending on the strength of the keystroke. For example, note N ₁ is displayed in red, note N ₂ is displayed in blue, and note N ₃ is displayed in yellow. In addition,
On the display screen SC, a treble clef staff with a treble clef and a bass clef with a bass clef are also displayed, but these are omitted in FIG. 1. Apparatus Configuration FIG. 2 shows an example of the configuration of a musical score display apparatus that enables the musical score display as described above. The musical score display device of this example uses a microcomputer to control musical score display, automatic piano performance, recording of piano performance, etc. A central processing unit (CPU) 10 is connected to a program memory 14 via a bus 12, and performs various functions for musical score display, automatic performance, and performance recording according to programs stored in this memory 14. It is designed to perform data processing and control. The bus 12 includes a recording/reading device 16, a key/switch interface 18, and a performance data memory 2.
0, a symbol data memory 22 and a display interface 24 are coupled. The recording/reading device 16 is a system disk 26
This is for reading program information from the data disk 28 and reading performance data from the data disk 28 or recording performance data on the data disk 28. The system disk 26 includes a program for off-line display and a program for real display, and one of them is selected for musical score display. In this case, the offline display program is for reading performance data from the data disk 28 and displaying it as a score, and the real display program is for reading performance data from the data disk 28 and displaying it as a score while playing the piano. This is for recording the performance while displaying the performance data as a musical score during automatic performance or manual performance on the piano. The piano 30 has a key switch for each key on the keyboard,
It is equipped with a keystroke strength sensor and a key drive solenoid. In this case, the keystroke strength sensor may be one that responds to keystroke force or one that responds to keystroke speed. The control switch circuit 32 includes a start/stop switch, a mode designation switch, a key designation switch, a time signature designation switch, a tempo designation switch, and the like. In this case, the modes that can be specified by the mode designation switch include offline display mode, manual performance mode, automatic performance mode, etc. In offline display mode, the musical score is displayed based on the performance data read from the data disk 28. In the manual performance mode, the musical score is displayed and the performance is recorded based on the manual performance on the piano 30, and in the automatic performance mode, the musical score is displayed and the piano 30 performs automatic performance based on the performance data read from the data disk 28. . The key/switch interface 18 scans the various switches in the control switch circuit 32 to detect switch operation information. In the manual performance mode, the key/switch interface 18 scans the key switches of the piano 30 to detect key operation information and also detects switch operation information. Keystroke strength information is taken in from the keystroke strength sensor 30, and in automatic performance mode, the key drive solenoid of the piano 30 is selectively excited based on the performance data supplied from the bus 12 to perform automatic performance. . The performance data memory 20 is a data disk 28
Performance data read from the piano 30 or performance data based on manual performance of the piano 30 is stored. The symbol data memory 22 stores symbol data for displaying musical symbols such as various musical notes, various rests, various accidentals, the start of a tie, and the end of a tie. Symbol data memory 22
Symbol data store to system disk 26
The program is executed according to the note pattern load program included in the program information read from the program information. The display interface 24 is configured to display color data based on display control data supplied from the bus 12.
This is for displaying musical scores on the CRT device 34. Outline of Operation Musical score display is executed when the control switch circuit 32 specifies any one of offline display mode, manual performance mode, and automatic performance mode. In the offline display mode, the system disk 26 is set in the recording/reading device 16, and the data disk 28 containing the performance data of the desired song is set, and the program for offline display on the system disk 26 is selected. (i.e., specify offline display mode).
The musical score display program read from the system disk 26 is stored in the program memory 14. Furthermore, various symbol data are stored in the symbol data memory 22 according to the note pattern load program included in the musical score display program at this time. Furthermore, the performance data read from the data disk 28 is stored in the performance data memory 20. On the display surface of the color CRT device 34, a music staff,
After the treble clef etc. is displayed, the performance data memory 2
The key signature, time signature, tempo symbol, etc. are displayed based on the key name data, time signature data, tempo data, etc. included in the performance data in 0. Thereafter, when the aforementioned start/stop switch is turned on to start performance display, the display screen of the color CRT device 34 displays the beginning of the first measure as shown in FIG. 1 based on the performance data in the performance data memory 20. The song contents are displayed sequentially starting from the notes. In this case, each displayed note is given a color depending on the strength of the keystroke. Furthermore, the display surface is divided into two areas, upper and lower, and musical scores are displayed alternately in the upper and lower areas. In the automatic performance mode, a program for real display on the system disk 26 set in the recording/reading device 16 is selected, and a data disk 28 on which the performance data of the desired song is recorded is loaded into the recording/reading device 16. and specify the automatic performance mode. In this case, the score display operation is the same as the offline display described above, but the offline display is different in that the piano 30 automatically plays based on the performance data in the performance data memory 20 as the score display progresses. The case is different. In the case of manual performance mode, select the program for real display on the system disk 26 set in the recording/reading device 16, set the data disk 28 for recording in the recording/reading device 16, and specify the manual performance mode. . In this case, program storage in the program memory 14 and data storage in the symbol memory 22 are the same as in the case of offline display described above, but the key name, time signature, tempo, etc. of the song to be played are determined by the control switch circuit 32. specify. Specified key, time signature,
Data such as tempo is stored in the performance data memory 20. On the display surface of the color CRT device 34, a music staff,
After the treble clef etc. is displayed, the performance data memory 2
Key symbols, time signatures, tempo symbols, etc. are displayed based on the key name data, time signature data, tempo data, etc. in 0. Then, when the aforementioned start/stop switch is turned on to start the performance display and to start manual performance on the piano 30, the manual performance data is sequentially stored in the performance data memory 20 and displayed on the display screen of the color CRT device 34. Based on the performance data in the memory 20, the content of the performance is displayed as a musical score in the same way as in the offline display described above. And the performance data memory 20
The performance data, including the aforementioned key data, time signature data, tempo data, etc., is finally recorded on the data disk 28. Musical Score Display Processing Next, the content of the processing for displaying the musical score will be explained in detail. The musical score display program is configured to execute the following processes (1) to (4). (1) Primary processing to create the format shown in Figure 4 based on the performance data format shown in Figure 3. (2) Secondary processing to create the format shown in Figure 5 based on the primary processing data format shown in Figure 4. (Note creation processing) (3) Tertiary processing to create the format in Figure 6 based on the secondary processing data format in Figure 5 (symbol assembly processing) (4) Based on the tertiary processing data format in Figure 6 Quaternary processing for displaying notes, etc. (note display processing) These primary to quaternary processing are common to the score display in each of the offline display mode, manual performance mode, and automatic performance mode. FIG. 3a shows the format of performance data stored in the performance data memory 20, and this performance data format is processed by changes in key states (events) by the key/switch interface 18.
Each time a keystroke is detected, one event is created based on key operation information, keystroke strength information, and the like. The performance data for one event is the front bite count data BC (F) and the low timer data.
It consists of TM (L), high-order timer data TM (H), key code data KC, and back byte count data BC (B), and if the event is key-on, touch code data TC follows key code data KC. is added. All of these data are 1-byte data. Both front byte count data BC (F) and back byte count data BC (B) are
This represents the number of bytes in one event's worth of performance data, and the minimum number of bytes is 3 (in the case of one key off), 5 in the case of simultaneous key on and key off, and 5 in the case of two key ons at the same time. It changes as follows. As an example, if the event is 1 key on, byte count data BC (F) and BC (B)
is "04" in hexadecimal notation as shown in Figure 3b. Note that FIG. 3b shows an example of performance data for one event in hexadecimal notation. The low timer data TM (L) and the high timer data TM (H) represent the elapsed time since the previous event. For example, if the elapsed time is 16 [ms] with 4 [ms] as one unit, then the As shown in FIG. 3b, the low-order timer data TM (L) is "04" and the high-order timer data TM (H) is "00". Key code data KC represents the key where the event occurred, and if the event is key-on,
The MSB (most significant bit) is "1", and if the event is key-off, the MSB is "0". For example, if the key code data KC is "BA" as shown in Figure 3b, if this is converted into binary notation, Figure 3c
It becomes as shown in . In this case, since the MSB is “1”, the event is a key-on, but the MSB
When set to "0", the event is key-off, and the key code data KC indicates "3A" in hexadecimal notation. The touch code data TC indicates the strength of the keystroke when the key is turned on, and the touch code ranges from the strength level fff (false strength)
It is predetermined as shown in the table below, corresponding to the eight stages up to ppp (pianissimo).

〔Effect of the invention〕

As described above, according to the present invention, since the strength of the keystroke is displayed in color for each note, there is an effect that the content of the performance, including the strength of the keystroke and changes in volume, can be clearly recognized visually.

[Brief explanation of drawings]

FIG. 1 is a front view of a CRT display screen for explaining an example of a musical score display according to the present invention, FIG. 2 is a block diagram showing a musical score display device according to an embodiment of the present invention, and FIGS. 3 and 4 , FIG. 5 and FIG. 6 are format diagrams showing the formats of performance data, primary processing data, secondary processing data, and tertiary processing data, respectively. FIGS. 7 and 8 are format diagrams showing simultaneous notes and tied notes, respectively. This is a musical staff showing an example of the display. 10... central processing unit, 12... bus, 14...
...program memory, 16...recording/reading device,
18...Key/switch interface, 20...
...Performance data memory, 22...Symbol data memory, 24...Display interface, 26...
System disk, 28...Data disk, 3
0... Piano, 32... Control switch circuit, 34
...Color CRT device.

Claims (1)

[Claims] 1. Receive performance information indicating the performance content of the musical instrument,
In a musical score display device that displays the performance content as a musical score based on this performance information, the performance information includes sound strength information for each performance sound, and the musical score is displayed in color as a means for displaying the musical score. What is claimed is: 1. A musical score display device, characterized in that the color display device is provided with a color display device that, when displaying notes for each of the performance notes, colors each note based on strength information of the corresponding sound.