JPH0752340B2 - Automatic playing system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an automatic performance system, and more specifically, an automatic performance piano is divided into a plurality of key ranges and only performance information based on a key operation for an arbitrary key range is reproduced. Automatic playing system.

<Prior Art> Conventionally, as an automatic performance system of this type, performance information including a key code generated based on a key operation of an automatic performance piano is stored in a controller, and the performance information stored by the controller is automatically recorded later. The music was supplied to the playing piano, and the solenoid provided corresponding to each key was selectively excited to drive the string striking mechanism of the automatic playing piano to generate a musical sound.

<Problems to be Solved by the Invention> Method 1 of using an automatic performance system including an automatic performance piano
One of them is the practice of playing the piano. In practicing such a piano performance, the performer plays the practice song in the recording mode, and later replays the performance to judge the suitability of the performance technique by himself and to improve the performance skill. In practicing such keyboard instruments as a piano, it may be helpful to improve the playing technique to judge the suitability by checking only the rendition of the left hand part or the right hand part when playing with both hands.
However, in the above-mentioned conventional automatic performance system, since all the performance information stored in the controller is reproduced by the automatic performance piano, it is not possible to reproduce only the part of one hand. There was a problem that the method was limited.

Therefore, it is an object of the present invention to provide an automatic performance system capable of reproducing only a performance of a designated key range in a reproduction mode even if a keyboard instrument is played with both hands in a recording mode.

<Means for Solving Problems> The present invention relates to an automatic performance controller that stores performance information in a digital format in a storage unit in a recording mode and sequentially reads out and outputs the performance information from the storage unit in a reproduction mode. A keyboard composed of a plurality of keys, performance information forming means for forming performance information based on a key operation on the keyboard in the recording mode, and sending the performance information to the storage section, and the storage section in the reproduction mode. A drive device for driving a mechanical tone generation mechanism based on performance information supplied from
In an automatic performance system including an automatic performance piano having a mechanical musical sound generation mechanism that mechanically generates a musical sound based on the key operation or driven by the driving device, the automatic performance controller includes a plurality of keyboards. The key range forming means for dividing the key range to identify the keys located at the boundaries of the plurality of key ranges, and the key range to which the key forming the performance information in the recording mode belongs are discriminated. Key range code giving means for giving the indicated range code to the performance information, and key range designating means for specifying the range of the performance information to be supplied to the drive device or the range of the supply information to be stopped in the reproduction mode. In the reproduction mode, based on the key range specified by the key range specifying means and the key range code attached to the performance information read from the storage unit, the read performance information is stored in the drive device. Supply It is determined whether or not it belongs to the key range to be supplied, and if it is determined that the performance information belongs to the key range to be supplied, the performance information is supplied to the drive device, and it is determined that it belongs to the key range to be stopped In this case, the present invention is further provided with a performance information supply control means for preventing the performance information from being supplied to the drive device.

<Operations and Effects> In the automatic performance system according to the above configuration, as shown in the claim correspondence diagram of FIG. 1, the keyboard 1 is divided into a plurality of key ranges 5, 7 ,. .. When the keyboard 1 is played in the recording mode after the keyboard 1 is split, the performance information forming means 9 generates performance information corresponding to the operated key, and the range key assigning means 11 performs the above operation. It is discriminated that the played key belongs to any of the key ranges 5, 7, ... And a key range code indicating the corresponding key range 5, 7, ... Is added to the performance information. The performance information to which the key range code is added in this way is sent to the storage unit 13 of the controller and stored in the storage unit 13.

Next, in the reproduction mode, if it is desired to cancel the reproduction of the performance information based on the key operation of any one of the key ranges 5, 7, ... After the area 5 is designated, the reproduction is started. When the reproduction mode is started, the performance information is sequentially read from the storage unit 13, and the key range code assigned to each performance information is the key range designating means 15 described above.
The performance information supply control means 17 determines whether or not it coincides with the code indicating the key range 5 designated by. If the result of the determination indicates a match, the performance information to which the key range code is attached is not sent to the drive device 19 and is ignored. On the other hand, in the case of disagreement, the performance information to which the key range code is attached is supplied to the drive device 19, and the drive device 19 drives the mechanical tone generating mechanism 21 based on the performance information. As a result, a musical tone corresponding to a key belonging to a key range other than the key range 5 is generated, and even if the performer plays using the entire keyboard 1, it will respond to keys other than the key range designated by the key range designating means 15. You can play only the sound that you want to play.

Therefore, if you specify the key range of the left-hand part and the key range of the right-hand part separately according to the song to be played, you can play only one hand after playing with both hands, effectively playing the keyboard. Can practice musical instruments.

<Example> An example of the present invention will be described below with reference to the drawings. Second
The figure is a front view of one embodiment, and 31 indicates a controller built-in type automatic playing piano. This automatic playing piano 31 has a keyboard 33 composed of 88 keys, a string striking mechanism as a mechanical tone generating mechanism for striking a string based on a key operation of each key of the keyboard 33, and the above string striking based on a drive signal. Although it has a solenoid group and the like (not shown) as a drive device for driving the mechanism and the pedal mechanism, since the above-mentioned components are basically the same as those of a normal automatic playing piano, detailed description thereof will be omitted. .

A key operation on the keyboard 33 is detected by a key switch circuit (not shown), and performance information is provided together with the output of a switch for detecting the operation of the pedal mechanism.

The operation panel of the controller 37 is exposed on the upper front plate 35 of the automatic playing piano 31, and since this controller 37 has a MIDI output terminal, a MIDI input terminal such as a keyboard as an electronic sound source is connected via a cable. It is possible to supply performance information to.

Next, the operation panel of the controller 37 will be described with reference to FIG. A power switch 43 is provided on the operation panel, and when the power switch 43 is turned on, a computer system, which will be described later, incorporated in the controller 37 is activated and the power indicator 45 is turned on. A floppy disk is inserted from the disk tray 47 of the operation panel and set in the disk driver. On the other hand, when removing the floppy disk from the disk driver, the eject button 49 may be pressed.

Reference numeral 51 denotes a song number display portion, which constitutes a part of a file label of a file area in which a series of performance information generated by a performance during recording is stored. On the other hand, the liquid crystal display unit 53
The tune title, various set values to be described later, elapsed time during recording and playback, recording and playback level, and the key range played in playback mode are displayed.

The recording switch 55 is a switch for putting the controller 37 in a recording start waiting state, and functions in the reproduction mode when the recording switch 55 is not operated. The recording switch 55 also serves as a switch for switching to a split point input mode for designating a key (hereinafter referred to as a split point) located at the boundary of the divided key range when the keyboard 33 is divided. That is, after the recording switch 55 is operated only once and the controller 37 is in a recording start waiting state, when the other switches such as the start and pause switches 57 are operated, the performance by key operation is recorded on the floppy disk. When the recording switch 55 is operated twice, the split point input mode is set. The start / pause switch 57 is not only for starting recording and playback,
When operated after the start of recording or the start of playback, recording or playback is temporarily stopped.

The song selection / fast-forward / fast-reverse switch 59 is composed of the left button 61 and the right button 63. This song-selection / fast-forward / fast-reverse switch 59 is common to the song number selection mode and the fast-forward / reverse mode during playback. Then used. That is, when the song selection / fast-forward / fast-reverse switch 59 is operated in the recording start waiting state or while recording and playback are stopped, the song to be recorded or played in cooperation with the song number display section 51 is stored. Make files selectable. On the other hand, when the song selection / fast-forward / fast-reverse switch 59 is operated during reproduction, the music being reproduced is fast-forwarded or rewound.

The repeat switch group 65 is used when repeatedly playing a performance, and all songs stored in the floppy disk set in the above disk driver are repeatedly played. Between the song switch 69 and any two points of a song (A
A-B switch for repeatedly playing back (between points and B)
It consists of 71 and.

The stop switch 73 is used both to stop operations such as recording, playback, fast-forward, and fast-reverse, and to start a mode for specifying a key range in which playback based on performance information is canceled (hereinafter referred to as a part cancel setting mode). To be done. In other words, if the stop switch 73 is operated after selecting a song with a split point specified, the part cancel setting mode will be entered, otherwise it will be used to stop operations such as recording, playback, fast forward, and fast rewind. It

The volume switch 75, the tempo switch 77, and the transposition switch 79 are used together with the increase button 81 and the decrease button 83. That is, when the increase button 81 or the decrease button 83 is pressed after the volume switch 75 is operated, the already set volume value is changed, the tempo switch 77 is operated, and then the increase button 81 or the decrease button 83. When is pressed, the tempo of the reproduced song is changed by a predetermined rate, for example, 10%. On the other hand, when the increase button 81 or the decrease button 83 is pressed after the transposition switch 79 is operated, the pitch of the music is transposed by a predetermined frequency during reproduction.

The part cancel switch 85 is used in the part cancel setting mode to specify a key range in which reproduction based on performance information is canceled. In the case of this embodiment, since there are two key ranges that can be divided, the part cancel switch 85 is composed of a left side specification button 87 for specifying the left side key range and a right side specification button 89 for specifying the right side key range.

As shown in FIG. 4, the central processing unit 91 has a configuration of a computer system which controls recording, reproduction, input of a split point, or designation of a key range to be canceled based on the operation of switches on the operation panel. Accesses ROM 95 via common bus 93 to sequentially read and execute program instructions. In this ROM95, along with the operating system and system initialization program,
The main program shown in FIG. 5, the recording subroutine program shown in FIG. 6, and the reproduction subroutine program shown in FIGS. 7A and 7B are stored in predetermined address spaces. Remembered

In the working register 97, a code indicating the file area corresponding to the song number selected by the song selection / fast-forward / fast-reverse switch 59, a data code relating to repeated reproduction set by the repeat switch group 65, a volume switch 75 and an increase / decrease switch. Data code relating to volume value set by 81, 83, tempo switch 77 and data code relating to tempo set by increase / decrease switch 81, 83, transposition switch 79 and data set by increase / decrease switch 81, 83 during playback A data code relating to a pitch to be transposed, a key code of a split point, a key range code of a key range to be canceled, etc. can be stored at respective predetermined addresses.

In the case of the present embodiment, a channel code added to the performance information is used as the key range code. That is, in the present embodiment, since the performance information is composed of MIDI messages, it is possible to add channel codes 1 to 16 to each performance information. Therefore, in the present embodiment, the channel code of the first channel is added to the performance information generated when a key belonging to the left side keyboard range is operated, and the second performance information is generated when a key belonging to the right side keyboard range is operated. Assign the channel code of the channel.

The DMA controller 99 manages the floppy disk driver 10 via the common bus 93 under the control of the operating system.
The floppy disk set to 1 is directly accessed, and the performance information stored under the file name transferred from the working register 77 by the central processing unit 91 is automatically played from the MIDI input / output 103 in the normal playback mode. Send to 31. On the other hand, in the recording mode, the coded performance information generated based on the key operation on the keyboard 33 is written together with the channel code in the data storage area of the file area designated in advance.

The switches 55 and the like provided on the operation panel of the controller 37 are regularly scanned by the central processing unit 91, and when any switch 55 or the like is operated, the operated switch 55 or the like is determined by software. The program address is changed or the corresponding data code is transferred to the working register 97. Further, a data code or the like set based on the operation of switches 55 provided on the operation panel is periodically read by the central processing unit 91 and is displayed by the display controller 105 on the music number display section 51 and the liquid crystal display section 53. Is displayed visually.

Next, the main program executed by the automatic performance system will be described with reference to the flowchart of FIG. When the power switch 43 is turned on, the computer system executes the initialization program (step P1),
Try to initialize the system. Next, the floppy disk driver 101 is scanned to determine whether or not the floppy disk is set (step P2). While the determination in step P2 is NO, the floppy disk driver 101 continues scanning and waits for the determination in step P2 to become YES. If the determination in step P2 is YES, it is determined whether or not a process related to the floppy disk, for example, formatting is necessary, and if necessary, the floppy disk is formatted (step P
3). In this way, when step P3 is completed and writing to and reading from the floppy disk become possible, the switch group 55 and the like of the operation panel are scanned. That is, it is determined whether or not the music selection / fast-forward and fast-reverse switch 59 has been operated by such scanning (step P4), and if the result of the determination is YES, the flow shifts to a reproduction subroutine program described later. On the other hand, if the decision result in the step P4 is NO, it is decided whether or not the recording switch 55 is operated (step P5). If the decision result is YES, the process shifts to the recording subroutine program and the keyboard 33 is pressed. Coded performance information generated based on a key operation is written in a data storage area of a file area designated in advance. On the other hand, if the decision result in the step P5 is NO, the floppy disk driver 101 is again scanned to judge whether or not the floppy disk is pulled out (step P6). While the result of the determination in step P6 is NO, steps P4 to P6 are repeated to wait for the transition to the reproduction subroutine program or the recording subroutine program. On the other hand, if the decision result in step P6 is YES, the process returns to step P2, and waits until a new floppy disk is set and the decision result in step P2 becomes YES.

Next, the flow when the determination result of step P5 becomes YES and the process shifts to the recording subroutine program will be described. In the recording switch-on event in which the result of the judgment in step P5 of the main program shown in FIG. 5 is YES, it is judged whether or not the recording switch 55 is operated twice more (step P11). If the result of the determination in step P11 is NO, that is, if the song selection / fast forward, fast rewind switch 59, etc. were operated to select a song, or if various functions for recording were set, the normal recording mode is used. Done (step P12). On the contrary,
When the recording switch 55 is operated two more times and the result of the determination in step P11 is YES, the split point input mode is entered, and the LCD display 53 displays “L / R RECORDING L <
The split point input mode such as "-88Key->R" is displayed (step P13). Next, the keyboard 33
It is determined whether any one of the keys is pressed and the split point is designated (step P14).
When the 0th key is pressed and the split point is specified, the determination result in step P14 is YES, so the split point is set to the 40th key, and the LCD display 53 displays `` L / R RECORDING L <-40 Key-> R ”(step P15). Next, it is determined whether or not the start / pause switch 57 has been operated (step P16). If the determination result in step P16 is NO, the process returns to step P14 to prepare for the change of the split point again. Key range forming means 3 by the above steps P13 to P16
Is realized.

When the setting of the split point is completed and the start or pause switch 57 is operated, the determination result of step P16 is YES, so the key switch circuit is scanned and the performance is awaited (step P17). Performance starts and step P
If the judgment result in 17 is YES, the key code sent from the key switch circuit is read (step P18), and it is judged whether or not the operated key is in the left key range by comparing with the key code at the split point ( Step P19). If the judgment result in step P19 is YES, the channel code of the first channel is added to the performance information including the key code (step P20). If the judgment result in step P19 is NO, the performance information including the key code is added. The channel code of the second channel is added (step P21). In this way, the performance information to which the channel code is added is transferred to the floppy disk and stored in the data storage area of the predetermined file area (step P22). Next, it is judged whether or not the performance is finished (step P23). When the performance is continued, the determination result in step P23 is NO, so the process returns to step P18, and thereafter the performance is finished. Steps P18 to P22 are repeated until the determination result of step P23 is YES. The key range code assigning means 11 is realized by the steps P18 to P21.

Next, a flowchart of the reproduction subroutine program will be described with reference to FIGS. 7 (A) and 7 (B). When the song selection / fast forward / fast rewind switch 59 is operated and the song selection switch on event occurs, the determination result of step P4 in FIG. 5 becomes YES, so the song to be reproduced is selected by the song selection subroutine (step P30). If the selected song is a song recorded by the subroutine program of FIG. 6 (hereinafter referred to as L / R compatible song), it is determined whether or not the stop switch 73 is operated (step P31), and the stop is performed. Start, pause switch 57 without operating switch 73
When the etc. are operated, the reproduction starts in the normal reproduction mode (step P33). On the other hand, the stop switch 73
Is operated and the determination result in step P31 is YES, for example, “<00:00> 00000 <L
The part cancel setting mode such as "R>" is displayed for a predetermined time (step P33).

Next, it is judged whether or not the left side designation button 87 has been operated (step P34). If the result of the judgment is YES, cancellation of the performance information with the channel code of the first channel is instructed (step P35). ), LCD display 53
A message to the effect that the performance information relating to the left side key range is canceled is displayed, for example, "<00:00> 00000 <R>" (step P36). If the determination result in step P34 is NO, or if step P36 ends, the right side designation button 8
It is judged whether or not 9 is operated (step P37),
If the result of the determination in step P37 is YES, an instruction to cancel the performance information with the channel code of the second channel is given (step P38), and the liquid crystal display 53 displays a message to the effect that the performance information related to the right keyboard region is canceled. , For example, the right side designation button 87 without the left side designation button 87 being operated.
When 89 is operated, “<00:00> 00000 <L
> ”(Step P39).

To cancel the cancellation of any key range already specified by the performer here, the left side specification button 87 is pressed again.
As a result, the determination result in step P40 is YES, the cancellation of the performance information with the channel code of the first channel is canceled (step P41), and the performance information related to the left keyboard range is reproduced on the liquid crystal display 53. The display is, for example, "<00:00> 00000 <L>" (step
P42). On the other hand, when the right side designation button 89 is pressed again, the determination result in step P43 is YES, the cancellation of the performance information with the channel code of the second channel is canceled (step P44), and the liquid crystal display 53 is displayed. For example, "<
00:00> 00000 <R> ”(Step P4
Five). Thereafter, it is judged whether or not the start / pause switch 57 has been operated (step P46), and while the result of the judgment is NO, steps P34 to P45 are repeated to wait for the start / pause switch 57 to be operated. . The key range designating means 15 is realized by the steps P31 to P45.

Eventually, when the start / pause switch 57 is operated,
Since the determination result of step P46 is YES, the first performance information is read from the predetermined file area of the floppy disk (step P47), and it is determined whether or not the channel code of the first channel is added to the performance information. (Step P48). If the judgment result in step P48 is YES, it is judged whether or not cancellation of the left keyboard range is instructed (step P49). If the judgment result in step P49 is NO, the performance information is sent to the automatic performance piano 31. Then, the string striking mechanism of the automatically playing piano 31 is driven to mechanically generate a musical sound (step P50). On the other hand, step P49
If the result of the determination is YES, that is, if cancellation of the left keyboard range is instructed, it is determined whether or not the reading is completed without sending the performance information to the automatic performance piano 31 (step P51), and the determination is made. If the result is NO, the process returns to step P47 to read the next performance information from the floppy disk. However, if the decision result in the step P48 is NO, that is, if the channel code attached to the read performance information does not indicate the first channel, it is determined whether or not the channel code indicates the second channel. If the determination is made (step P52) and the determination result is NO, that is, if neither the first channel nor the second channel is shown, performance information is sent to the MIDI input / output 103, and if an external electronic sound source is connected. If so, performance information is supplied to the electronic sound source (step P53). On the other hand, if the read performance information has a channel code indicating the second channel, the determination result in step P52 is YES, so it is determined whether or not cancellation of the right keyboard range is instructed ( (Step P54), if the determination result in Step P54 is NO, the performance information is sent to the automatic performance piano 31 and the string striking mechanism of the automatic performance piano 31 is driven to mechanically generate a musical sound (Step P55). On the contrary,
When the result of the determination in step P54 is YES, that is, when the cancellation of the right keyboard region is instructed, it is determined whether or not the reading is completed without sending the performance information to the automatic performance piano 31 (step P51), If the determination result is NO, the process returns to step P47 to read the next performance information from the floppy disk. When all the performance information written in the predetermined file area is read out in this way, the determination result in step P51 becomes YES, and the process returns to the main program shown in FIG. The performance information supply control means 17 is realized by the above steps P47 to P55.

Although the automatic performance system is constructed by using the upright type automatic performance piano in the above embodiment, a grand piano capable of automatic performance may be used. Further, although the controller is incorporated in the automatic playing piano in the above-described embodiment, the controller may be installed separately from the automatic playing piano.

[Brief description of drawings]

1 is a front view of one embodiment of the present invention, FIG. 3 is a front view of the controller shown in FIG. 2, and FIG. 4 is an electric block showing the hardware of the controller. 5 and 5 are flowcharts showing a main program of one embodiment, FIG. 6 is a flowchart showing a recording subroutine program of one embodiment, and FIGS. 7A and 7B are reproduction subroutines of one embodiment. It is a flowchart figure which shows a program. 1 ... keyboard, 3 ... key range forming means, 5,7 ... key range, 9 ...
... playing information forming means, 11 ... key range code giving means, 13 ...
... storage section, 15 ... key range designating means, 17 ... performance information supply control means, 19 ... drive device, 21 ... mechanical tone generating mechanism,
31 …… Automatic playing piano, 37 …… Controller.

Claims (1)

[Claims] 1. An automatic performance controller for storing performance information in a digital format in a storage section in the recording mode, and sequentially reading out and outputting the performance information from the storage section in the reproduction mode, and a plurality of keys. A keyboard, performance information forming means for forming performance information based on a key operation on the keyboard in the recording mode, and sending the performance information to the storage section, and a machine based on the performance information supplied from the storage section in the reproduction mode. In an automatic performance system including a driving device for driving a dynamic musical tone generating mechanism, and an automatic playing piano having a mechanical musical tone generating mechanism for mechanically generating a musical tone based on the key operation or driven by the driving device, The automatic performance controller divides the keyboard into a plurality of key ranges and specifies a key located at the boundary of the plurality of key ranges. Of P14, P1
5) and the key range code assigning means for determining the key range to which the key forming the performance information belongs in the recording mode and assigning the key range code indicating the key range to the performance information (P19 to P19 in FIG. 6). P21), and a key range designating means (P33 to P45 in FIG. 7 (A)) for designating a key range in which the performance information is supplied to the driving device or in the reproduction mode, and the supply of the performance information is stopped. In the mode, the read performance information is supplied to the drive unit based on the key range specified by the key range specifying means and the key range code attached to the performance information read from the storage section. It is determined whether or not it belongs to the key range to be supplied, and if it is determined that the performance information belongs to the key range to be supplied, the performance information is supplied to the drive device, and it is determined that it belongs to the key range to be stopped In this case, the performance is such that the performance information is not supplied to the drive device. An automatic performance system further comprising information supply control means (P48 to P55 in FIG. 7B).