JP2000020057A - Manipulation guide device for keyboard musical instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable guide display at timing desired by a player by displaying the sequence of manipulation on a guide display means according to the instructions from pedals. SOLUTION: The pedal 7 comprises a damper pedal and a soft pedal. The damper pedal is used to open all strings by parting dampers from strings. The soft pedal is used to generate soft tones by suppressing the magnitude of the tones and is also used to give instructions as to whether the guide display is executed or not. The respective pedals 7 have switches to be opened and closed according to stepping down. The states of the these switches are supplied to an electronic musical instrument device 3. A guide controller 8 drives a guide display device 9 in accordance with the guide data included in the play information from a MIDI device 2 and supplies the play information to be used for sound production to the electronic musical instrument device 3. The sequence of manipulation is displayed on the guide display device 9 in accordance with the instructions from the pedals 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation guide device for a keyboard instrument, and more particularly to a technique for controlling a timing for activating a function for guiding a player's operation.

[0002]

2. Description of the Related Art Conventional keyboard instruments such as pianos, electronic pianos, electronic organs, and keyboards are disclosed in, for example, Japanese Patent Publication No. 63-21903.
2. Description of the Related Art There is known a display device provided with a display on the surface of a key or in the vicinity of the key, and a key pressing instruction device for displaying a key pressing position, a note length or the like based on data stored in a memory. In this key pressing instruction device, the display of the key position to be pressed is turned on at the timing of actually pressing down, or the display of the key position to be pressed next is turned on at the timing of pressing a certain key. Light.

[0003] Japanese Utility Model Publication No. 63-12362 discloses a technique in which a numeric display is provided for each key and the finger number to be pressed is displayed. Further, JP-A-7-33
Japanese Patent No. 4073 discloses a technique for displaying the position of each finger using an LED.

The key press indicating device provided on these conventional keyboard instruments displays the position, length, finger number, etc. of the key pressed. However, when a novice practices while looking at the display, characters are displayed. There is a drawback that key-depression is delayed since it is necessary to depress keys after reading letters or numbers or recognizing the shape of a symbol.

[0005] When the position of the hand at the time of pressing the key is determined, the finger to be pressed is naturally determined. Since the position to place the hand is determined for the first time by determining which finger should be pressed and moving the finger to the position of the key to be pressed, there is a disadvantage that the movement of the hand is delayed. Furthermore, the conventional key press indicating device that displays the position of the finger has a problem that it is difficult to recognize the position when both hands approach.

In order to solve the above-mentioned problem, the present applicant has provided a key press indicating device which can intuitively recognize the position of the hand to be pressed and the information of the finger to be pressed together with the position of the key to be pressed. (Japanese Unexamined Patent Publication No. 9-19804)
No. 3).

[0007]

However, any of the above-described conventional key press indicating devices always performs a guide display over the entire musical piece when the power is turned on. Therefore, the player tends to rely on the guide display even for the performance of the part that can be played by practice. As described above, the conventional key press indicating device has a problem that it lacks consideration for a person who can play to some extent.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and an object of the present invention is to provide an operation guide device for a keyboard instrument which allows a player to perform a guide display at a desired timing. It is in.

[0009]

In order to achieve the above object, an operation guide device for a keyboard instrument according to the present invention is an operation guide device for guiding an operation sequence of a keyboard instrument, and a guide for displaying the operation sequence. A display means, a pedal for instructing whether or not to display the operation order on the guide display means, and a control means for displaying the operation order on the guide display means in response to an instruction from the pedal.

[0010] The pedal of the keyboard instrument operation guide device can be configured to also serve as the pedal of the keyboard instrument. The keyboard instrument operation guide device further includes instruction means for instructing the use of the pedal, and when a predetermined use is designated by the instruction means, the control means responds to an instruction from the pedal. The guide display means may be configured to display an operation order. In this case, a soft pedal can be used as the pedal.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. Hereinafter, a piano with a sound deadening function to which the present invention is applied will be described as an example. A piano with a sound deadening function is configured by mounting a sound deadening mechanism and a function of an electronic piano on a normal acoustic piano. This piano with a sound deadening function functions as an acoustic piano when the sound deadening mechanism is not operated. On the other hand, when the silencer is activated, it functions as an electronic piano. The silencing mechanism has a structure that prevents a hammer from striking a string even when a key is pressed, and its details are described in, for example, Japanese Patent Application Laid-Open No. 7-92965.

(Embodiment 1) FIG. 1 is a block diagram showing an electric configuration of a piano 1 with a sound deadening function. The piano 1 with a sound deadening function includes an electronic musical instrument device 3, a keyboard circuit 4, speakers or headphones 5, a panel 6, a pedal 7, a guide control device 8, a guide display device 9, and a guide panel 10. The MIDI device 2 can be connected to the guide control device 8 of the piano 1 with the silencing function. Among these components, the electronic musical instrument device 3, the keyboard circuit 4, the speaker or the headphone 5, the panel 6, and the pedal 7 are also provided in a conventional piano with a sound deadening function which does not have a key press indicating device.

The electronic musical instrument device 3 generates a tone signal based on a signal from the keyboard circuit 4 indicating a key pressed state, which will be described in detail later. The keyboard circuit 4 is composed of a set of two key switches arranged at the lower part of each key and having different ON timings. The electronic musical instrument device 3
A key depression / key release is detected based on a signal indicating the state of the key switch from the keyboard circuit 4, and a key depression speed (velocity) is detected from a difference between timings at which the two key switches are turned on.

The speaker or headphone 5 generates a sound based on a tone signal generated from the electronic musical instrument device 3. The panel 6 includes a switch for setting a tone color, an effect, and the like, a display for displaying a setting state, and the like. The pedal 7 includes a damper pedal and a soft pedal. The damper pedal is used to release the damper from the strings and open all strings. Also, the soft pedal is originally used to suppress the loudness of the sound and generate a soft sound. In the present invention, the soft pedal is used to instruct whether or not to perform the guide display. Each pedal is provided with a switch that opens and closes in response to depression, and the state of this switch is supplied to the electronic musical instrument device 3.

As shown in FIG. 5, for example, the guide display device 9 is composed of a plurality of displays provided for each key. The guide control device 8 drives the guide display device 9 based on the guide data included in the performance information from the MIDI device 2, and also outputs the performance information (excluding the guide data) used for sound generation to the electronic musical instrument device 3. Supply. The guide panel 10 includes a switch circuit (hereinafter, referred to as a “mode switch”) for designating a key press instruction mode.

The MIDI device 2 is a device for generating performance information in real time. For example, a MIDI file containing performance information including guide data is input from a ROM, a floppy disk, or the like, and the MIDI file is generated in real time.
Commercially available sequencers that generate I messages are available. This MIDI sequencer has functions such as setting a tempo, pausing, fast-forwarding, repeating, and recording while reproducing.

FIG. 2 is a block diagram showing an electrical configuration of the electronic musical instrument device 3. As shown in FIG. The electronic musical instrument device 3 includes a bus 3
2, a CPU 21, a ROM 23, a RAM 24,
It comprises a panel interface circuit 25, a keyboard scan circuit 26 and a tone generator circuit 27. Bus 32
Is used for mutually exchanging data between these elements. The CPU 21 has a MIDI input / output terminal 22
Is provided. Further, a waveform memory 28 and a D / A converter 29 are connected to the tone generator 27. D / A
The signal from the converter 29 is supplied to the amplifier 30. The signal from the amplifier 30 is supplied to a speaker or headphones 5.

The CPU 21 controls the entire electronic musical instrument 3 according to a control program stored in the ROM 23. In addition, the electronic musical instrument device 3 performs C
It has a timer circuit (not shown) that interrupts the PU 21. Further, the CPU 21 includes a MIDI input / output terminal 22.
And a serial signal input / output circuit (not shown) for transmitting / receiving a MIDI signal to / from the guide control device 8 via the controller. When a MIDI signal is transmitted / received by the serial signal input / output circuit, the fact is notified by an interrupt to the CPU 2.
1 is notified.

The ROM 23 stores tone color parameters, performance data and the like in addition to the control program. RAM
Reference numeral 24 is used as a work area and a buffer of the CPU 21. The RAM 24 may be backed up by a battery or the like (not shown). The panel interface circuit 25 controls signals transmitted and received between switches and indicators on the panel 6 and the pedal 7. Further, the keyboard scan circuit 26 includes the keyboard circuit 4
Scans the switch of each key to detect a state change and a key pressing speed, and notifies the CPU 21 of the change.

The tone generator 27 generates a tone signal by, for example, a waveform reading method. The tone generator circuit 27 sequentially reads out digital musical tone waveform data from the waveform memory 28 at address intervals proportional to the pitch to be sounded, and performs an interpolation operation or the like to generate a musical tone waveform signal. Further, the tone generator circuit 27 has an envelope signal generating circuit, multiplies the musical tone waveform signal by an envelope signal generated based on the set envelope parameters, and gives an envelope,
Thus, a digital tone signal is output. This tone generator circuit 27
Has a plurality of tone generation channels. In practice, however, a plurality of digital tone signals can be independently generated simultaneously by operating one tone generation circuit in a time-division multiplex manner.

The D / A converter 29 converts the digital tone signal generated by the tone generator 27 into an analog tone signal and supplies the analog tone signal to the amplifier 30. Then, the analog musical sound signal amplified by the amplifier 30 is converted into a sound by the speaker or the headphones 5. If necessary, a memory card interface circuit, a floppy disk, and the like may be provided.

FIG. 3 is a block diagram showing an electrical configuration of the guide control device 8. This guide control device 8
CPU 40, ROM 41, interconnected by a bus
It has a RAM 42, a display device interface circuit 43 and a guide panel interface circuit 44. CPU40
Has a MIDI output terminal 45, a MIDI input terminal 46,
The OR gate 47 and the MIDI input / output terminal 48 are connected.

The CPU 40 controls the entire guide control device 8 based on a control program stored in the ROM 41. The guide control device 8 has a built-in timer circuit (not shown) that interrupts the CPU 40 at a predetermined cycle set in advance. Also, the CPU 40
M from the external MIDI device 2 via the I input terminal 46
A serial signal input circuit for receiving an IDI message, and an M
A serial signal output circuit (both not shown) for outputting an IDI signal is provided. These circuits are MIDI
When a signal is transmitted or received, the
Notify PU40.

It should be noted that the CP
Part of the MIDI signal (guide data) input to U40 is stored in a predetermined area (reception guide buffer) in RAM. The MIDI signal output from the CPU 40 and the MIDI signal output from the electronic musical instrument 3
The OR of the MIDI signal input to the guide control device 8 through the DI input / output terminal 48 is obtained by an OR gate 47, and the MIDI signal is input from the MIDI output terminal 45 to the external MIDI.
Output to the device 2.

The ROM 41 stores, for example, a program for performing processing described later. Also, the RAM 42
Are used as a work area and a buffer of the CPU 40. The RAM 42 stores, in addition to the reception guide buffer, a MIDI signal (a performance data such as a note number obtained by actual keyboard operation or pedal operation) input from the electronic musical instrument apparatus 3 to the CPU 40 via the MIDI input / output terminal 48. ) Is temporarily stored.

The display device interface circuit 43 transmits display data for guide display to the guide display device 9.
The display device interface circuit 43 has a built-in DMA (direct memory access) transfer control circuit.
Based on the instruction from 40, a plurality of bytes of display data stored in a predetermined area of the RAM 42 are sequentially read and transmitted as a serial signal (SS) from a serial signal transmission circuit (not shown).

This display device interface circuit 43 comprises:
In addition, a clock signal (CK) is transmitted in synchronization with each bit of the serial signal SS. Then, when the transfer by the DMA ends, the CPU 40 is interrupted to notify the end. Further, a latch signal L for causing the guide display device 9 to latch display data is generated. The guide panel interface circuit 44 detects the state of the mode switch on the guide panel 10 and notifies the CPU 40. The current mode information is displayed on a display (not shown) on the guide panel 10.

FIG. 4 is a circuit diagram showing the configuration of the guide display device 9. The guide display device 9 includes a plurality of serially connected shift registers (hereinafter, referred to as SR) that receive display data (serial signal SS) transmitted from the display device interface circuit 43 of the guide control device 8. ing.

The SRs 50 and 51 are, for example, 8-bit shift registers. The serial signal SS from the display device interface circuit 43 is input to the serial input terminal SI of the first stage SR 51. Further, the serial output terminal SO is connected to the input terminal SI of the next stage SR (not shown). The serial output terminal SO of the immediately preceding SR is connected to the serial input terminal SI of the last stage SR 51 via a plurality of SRs (not shown) between the SR 50 and SR 51.

The parallel output terminals Q1 to Q8 of each SR have a current limiting resistor 53 and a light emitting diode (LED).
52 are connected to each other, and each LED 5
The other ends of 2 are commonly connected to a power supply (+ 5V). Therefore, when the output of the parallel output terminal is at a low level (hereinafter, referred to as “L level”), the corresponding LED is turned on. The case where the output of the parallel output terminal goes to L level will be described later.

The clock signal CK and the latch signal L output from the display interface circuit 43 are input to the clock terminal CK and the latch terminal L of each SR via the receivers 54 and 55, respectively. Each SR has a clock terminal C
When a clock pulse is input to K, the contents of the register are shifted right by one bit. When the latch signal L is at a high level (hereinafter referred to as “H level”), the clock signal C
Even if K is input, no shift is performed, and the contents of the register are latched (held).

The LEDs 52 are arranged, for example, as shown in FIG. 5 (indicated by circles). The correspondence between the parallel output terminals Q1 to Q8 of each SR and the positions of the LEDs 52 can be arbitrarily determined by rearranging and transmitting the display data from the guide control device 8 in accordance with the arrangement of the LEDs 52. In order to shorten the length, assignment may be made by the number of SR terminals from the left.

FIG. 5 shows an example of the structure of the guide display device 9. The guide display device 9 has a structure in which a plurality of LEDs are arranged on a keyboard holding member 62 located above a rear portion of a keyboard including a white key 60 and a black key 61. Keyboard holding member 62
Are arranged at an angle above the rear of the keyboard so as to be almost in contact with the keyboard.
On the upper part of the printed wiring board to which R50 and 51 are attached,
The structure is such that a cover made of a translucent black acrylic plate is attached so that only the emitting LED can be seen.

Three LEDs are arranged at positions corresponding to the white keys 60 and the black keys 61, respectively.
For example, 88 pieces are arranged in three rows of B and C, respectively. The LEDs in the upper row A are used to display, for example, a key depression position. For example, the white key 60 is green and the black key 61 is red. These are the display data (note number)
On at the key-on timing and turn off at the key-off timing based on

The LEDs in row B in the middle are orange.
Used to display right hand coverage. The LEDs in row C at the bottom are orange and are used to display the coverage of the left hand. When the display positions of the LEDs in columns B and C are changed, the display is controlled so that the display moves at a speed close to the actual moving speed of the hand by a process described later.

When displaying the LEDs in rows B and C, the LEDs at the positions corresponding to the keys to be depressed are blinked at a predetermined cycle, or changed in brightness or color, for example. The display form is different from other LEDs. In FIG. 5, the LEDs 63 and 64 in row A are key-pressed, and the coverage area of the right hand is indicated by eight consecutive LEDs in row B. At this time, A
The LEDs in row B at the positions corresponding to the LEDs 63 and 64 in the row are blinking (shown by oblique lines).

An LED 65 for instructing the operation of the damper pedal is arranged at a portion of the keyboard where the black key 51 does not exist (a portion where the white keys 60 are adjacent to each other). It is not necessary to provide all of the pedal operation display LEDs 65 at positions where there is no black key 61. For example, it is possible to install only about three places where there is no black key 61 in the low, middle and treble portions of the keyboard. Good. Note that at least one set of the pedal operation display LED 65 is sufficient.
Even if D65 is omitted, fingering can be practiced.

FIG. 6 shows each track (MI) of the performance data when the guide display is performed using dedicated performance data including display data (guide data) for the guide display device.
FIG. 3 is a diagram for explaining the contents of the DI channel and processing in each mode. As shown in FIG. 1, the performance data adopts a MIDI format, and is reproduced in real time from an external MIDI device 2 such as a sequencer.

Each of the tracks 1 to 6 of the dedicated performance data corresponds to data as described in the remarks column of FIG. That is, tracks 1 and 2 are tracks for recording by the performer, and contain no data in the initial state. Tracks 3 and 4 store MIDI messages as performance information corresponding to the left and right hands. The tracks 5 and 6 store display data for displaying key presses and fingerings corresponding to the left and right hands, respectively.

The display data of tracks 5 and 6 includes MI
The DI polyphonic key pressure signal is used. The reason for using this signal is that it is not normally used, and that even if there are a large number of such signals having arbitrary parameters in a particular channel, there is no effect on automatic performance. Alternatively, another MIDI message may be used for display, or performance information in a unique format may be used. FIG. 7 is a diagram for explaining the contents and processing of each track when general performance data is used.

FIG. 8 shows a second example of the polyphonic key pressure signal used for the display data in the exclusive performance data.
It is an explanatory view showing the contents of the third byte. The polyphonic key pressure signal is composed of three bytes, and the first byte is composed of status information indicating the polyphonic key pressure signal and MIDI channel information.

The second and third bytes indicate the attributes and values of the display data as shown in FIG. For example, when the second byte is “00”, it indicates that the third byte of the display data is the fingering lower limit note number. If the second byte has a value of “21 to 108”, the value of the second byte itself indicates the note number. If the third byte is other than “00”, note guide-on, ie, the second byte Indicates that the display of the LED at the position of the key to be depressed is turned on.

Next, the operation of the electronic musical instrument apparatus 3 having the above configuration will be described with reference to the flowchart shown in FIG.

When the power of the electronic musical instrument apparatus 3 is turned on, first, the data in the tone generator 27 and the RAM 24 are initialized (step S1). Next, the state of each key switch of the keyboard circuit 4 is scanned via the keyboard scan circuit 26, and it is checked whether a key event, that is, a change in the state of the key switch has occurred (step S2). When it is determined that a key event has occurred, the process branches to step S3.

In step S3, it is checked whether the key event is key-on. When it is determined that the key is on, a key assignment process is performed (step S4). In this key assignment process, a vacant sound channel of the tone generator 27 is assigned to sound generation. Next, a sound generation process is performed (step S
5). In this tone generation process, various parameters are set in the tone generation channel assigned by the tone generator circuit 27, whereby the tone generation is started. Thereafter, the sequence branches to step S7. If it is determined that the key is not turned on in step S3, it is recognized that the key is turned off, and a key-off process is performed (step S6). Thereafter, the sequence branches to step S7. Note that when a key event is detected, M
An IDI transmission process is also performed. Thereby, for example, the external MIDI device 2 can record performance information corresponding to the key event.

If it is determined in step S2 that there is no key event, then it is checked whether there is a panel event (step S7). That is,
Whether the state of the various switches on the panel 6 has changed,
Then, it is checked whether or not the state of the switch linked to the pedal 7 has changed. Here, if it is determined that there is a panel event, panel processing is performed (step S
8). In this panel process, a MIDI transmission process corresponding to the panel event is also executed when the panel event is detected. Thereby, the guide control device 8 can recognize that the panel 6 and the pedal 7 connected to the electronic musical instrument device 3 have been operated. Further, the external MIDI device 2 can record performance information corresponding to the panel event. Thereafter, the sequence branches to step S9.

On the other hand, if it is determined that there is no panel event, then it is checked whether there is a MIDI event (step S9). That is, it is checked whether a MIDI message signal has been received. Where MI
If it is determined that there is a DI event, MIDI signal processing is performed (step S10). In the MIDI signal processing, sound generation processing or key-off processing is performed in the same manner as the processing for the key event described above. afterwards,
The sequence branches to step S11.

Since the MIDI signal received from the outside is output to the external output terminal by the guide control device 8, the electronic musical instrument device 3 does not retransmit the received MIDI signal. Next, other processing is performed (step S11). In this processing, for example, effect adding processing, automatic performance processing, and the like are performed. Thereafter, the sequence returns to step S2, and thereafter, the same processing is repeated.

Next, the operation of the guide control device 8 will be described with reference to FIG.
This will be described in detail with reference to the flowchart showing the main processing shown in FIG.

This main processing routine is started when the power is turned on. When the power is turned on, first, an initialization process is performed (step S20). In this initialization processing, the data in the guide display device 9 and the RAM 42 are initialized. Next, a guide panel process is performed (step S21). In this process, as will be described in detail later, a change in the state of the mode switch on the guide panel 10 is detected, and a mode update process or the like is performed according to the detection result. Next, an electronic musical instrument device input process is performed (step S22). In this process, as will be described in detail later, a process of inputting performance information (note number or the like) related to actual key depression or pedal operation from the electronic musical instrument device 3 is performed.

Next, a MIDI input process is performed (step S23). In this processing, which will be described in detail later,
When a MIDI signal is received from the MIDI device 2, generation of display data, transfer of the MIDI signal, and the like are performed. Next, fingering display data creation processing is performed (step S24). In this processing, which will be described in detail later,
Fingering display data for displaying the positions of the left and right hands and the like is created. Next, display data creation and transmission processing is performed (step S25). In this process, display data to be transferred to the guide display device 9 is created, which will be described in detail later. Thereafter, the sequence returns to step S21, and the same processing is repeated thereafter.

Next, the timer interrupt processing performed in parallel with the main processing will be described in detail with reference to the flowchart of FIG. This timer interrupt processing is started when the CPU 40 in the guide control device 8 receives a timer interrupt at a predetermined cycle from a timer circuit (not shown) provided in the guide control device 8.

In this timer interrupt processing, first, the content of the guide panel processing timer counter is incremented by 1 (step S30). The guide panel processing timer counter is used to determine the cycle of the guide panel processing. Next, the content of the display data transmission timer counter is incremented by one (step S31). The display data transmission timer counter is used to determine the cycle of the display data transmission process. Next, the content of the fingering display timer counter is incremented by 1 (step S32). The fingering display timer counter is used to determine the cycle of fingering display.

Next, the content of the LED blinking counter is incremented by +1.
Is performed (step S33). LED blink counter is L
Used to determine the blinking cycle of the ED. Then
It is checked whether the content of the LED blinking counter has exceeded a predetermined value K (step S34). Here, the predetermined value K
Is determined such that the blinking cycle is, for example, about several hundred milliseconds. If it is determined in step S34 that the value has been exceeded, the blinking flag is inverted (step S35). Next, the content of the LED blink counter is cleared (step S36). Thereafter, the sequence returns to the interrupted position of the main processing routine. Step S above
If it is determined at 34 that the content of the LED blinking counter does not exceed the predetermined value K, the sequence returns to the interrupted position of the main processing routine.

Next, the MIDI reception interruption processing performed in parallel with the main processing will be described with reference to the flowchart of FIG. The MIDI reception interrupt process is started each time a MIDI signal of one byte is received from the external MIDI device 2.

In the MIDI reception interrupt processing, first, a received MIDI signal is read from a register of a receiving circuit (not shown) (step S40). Next, the read MIDI signal is stored in the reception buffer (including the reception guide buffer) in the RAM 42 (step S41). Thereafter, the sequence returns to the interrupted position of the main processing routine.

Next, the MIDI transmission interruption processing performed in parallel with the main processing will be described with reference to the flowchart of FIG. This MIDI transmission interrupt processing is performed by M
It is activated each time transmission of a 1-byte MIDI signal to the IDI device 2 is completed.

In this MIDI transmission interruption process, first, R
It is checked whether there is data to be transmitted in the transmission buffer in the AM 42 (step S43). If it is determined that there is data to be transmitted, one byte of data is extracted from the transmission buffer and transferred to a transmission circuit (not shown) (step S44). As a result, the transmission circuit is activated and data is transferred. Thereafter, the sequence returns to the interrupted position of the main processing routine. If it is determined in step S43 that there is no data to be transmitted in the transmission buffer, the sequence returns to the interrupted position of the main processing routine.

Next, a display data transmission end interruption process performed in parallel with the main process will be described with reference to the flowchart of FIG. This display data transmission end interrupt processing is started when the display data transmission operation started by the display data creation / transmission processing (step S25 in FIG. 12) ends.

In this display data transmission end interrupt processing, C
The PU 40 sets the transmission data latch signal L to the H level via the display device interface circuit 43 (Step S).
47). Thereby, the bit shift of the shift registers 50 and 51 in the guide display device 9 is prohibited, and the data is latched. Thereafter, the sequence returns to the interrupted position of the main processing routine.

Next, the details of the guide panel process performed in step S21 of FIG. 12 will be described with reference to the flowchart shown in FIG.

In this guide panel processing, first, it is checked whether or not the value of the guide panel processing timer counter is equal to or more than a predetermined value (step S50). Here, the predetermined value is a value such that a time longer than a time required for the chattering of the switch to converge is obtained. If it is determined in step S50 that the value is not more than the predetermined value,
The sequence returns from the guide panel processing routine to the main processing routine.

On the other hand, if it is determined in step S50 that the value is equal to or larger than the predetermined value, the state of the mode switch on the guide panel 10 is input (step S51). Next, in order to prevent malfunction due to chattering, the previously input status information and the currently input status information are compared to confirm that the two statuses match (step S52). Here, if it is determined that the states do not match, the guide panel process ends, although not shown, and the sequence returns to the main process routine.

Next, event detection processing is performed (step S53). That is, the presence / absence of the ON event of the mode switch is detected by comparing the stored current switch state information with the input state information. Next, the presence or absence of an ON event is checked (step S5).
4). If it is determined that there is no on-event,
The sequence returns from the guide panel processing routine to the main processing routine.

On the other hand, if it is determined that there is an ON event, then the mode number is updated (step S5).
5). Next, initialization of the tone generator circuit 27 and initialization of guide display data are performed (step S56). this is,
M for causing the electronic musical instrument device 3 to initialize sound generation processing
This is performed by sending an IDI signal. Thus, all displays are turned off. Thereafter, the sequence returns from the guide panel processing routine to the main processing routine.

Next, the details of the electronic musical instrument device input processing performed in step S22 of FIG. 12 will be described with reference to the flowchart shown in FIG.

In this electronic musical instrument device input processing, first, it is checked whether or not there is received data from the electronic musical instrument device 3 to the guide control device 8, that is, keyboard information and pedal information relating to an actual performance (step S57). . Here, if it is determined that there is received data, the received data is written to the received data buffer in the RAM 42 (step S58). Next, it is checked whether the received data written in the received data buffer is data indicating that the soft pedal is turned on (step S59). Here, when it is determined that the data indicates that the soft pedal is on, the soft pedal flag is turned on (step S60). Thereafter, the sequence returns from the electronic musical instrument device input processing routine to the main processing routine. On the other hand, if it is determined that the data does not indicate that the soft pedal is on, then it is checked whether the reception data written in the reception data buffer is data that indicates that the soft pedal is off (step S61). If it is determined that the data indicates that the soft pedal is off, the soft pedal flag is turned off (step S62). Thereafter, the sequence returns from the electronic musical instrument device input processing routine to the main processing routine. If it is determined in step S57 that there is no received data, the sequence returns from the electronic musical instrument device input processing routine to the main processing routine.

Next, details of the display data creation and transmission processing performed in step S25 of FIG. 12 will be described with reference to the flowchart shown in FIG.

In this display data creation and transmission process, first,
It is checked whether a predetermined time has elapsed (step S65). This is performed by checking whether the value of the display data transmission timer counter is equal to or greater than a predetermined value. If it is determined that the predetermined time has elapsed, the content of the display data transmission timer counter is cleared, and the sequence proceeds to step S66.

In step S66, it is checked whether the soft pedal flag is on. Here, when it is determined that the soft pedal flag is off, it is recognized that there is no need to perform guide display, and the sequence returns from the display data creation transmission processing routine to the main processing routine. On the other hand, when it is determined that the soft pedal flag is on, the processes of steps S67 and S68 are performed to perform the guide display.

In step S67, a key pressing instruction, which will be described later,
Based on the on / off data of the fingering instruction and the pedal operation instruction LED, of the fingering instruction LEDs, an LED that matches the key press instruction is logically ANDed with a blinking flag and blinked. The LED on / off data is rearranged so as to correspond to the arrangement of the LEDs 52 of the guide display device 9 as shown in FIG.

Next, DMA transfer is set (step S68). That is, the display data generated in the step S67 is stored in a predetermined area of the RAM 42, the latch signal L is set to L level, and the display device interface circuit 43 is activated for DMA transfer. Thereafter, the sequence returns from the display data creation processing routine to the main processing routine. As a result, the display device interface circuit 43 sequentially reads the display data from the RAM 42 and outputs the serial signal S as described above.
S is sent to the guide display device 9 as S.

Next, details of the MIDI input processing performed in step S23 of FIG. 12 will be described with reference to the flowchart shown in FIG.

In this MIDI processing, first, it is checked whether or not there is data received from the MIDI device 2 in the reception buffer (step S70). If it is determined that there is no received data, the sequence
The process returns from the DI input processing routine to the main processing routine.

On the other hand, if it is determined that there is received data, the received data is read from the reception buffer (step S71). Next, when the read reception data is 16
Hexadecimal FAH (H at the end represents a hexadecimal number.
It is checked whether the message is a MIDI start message (step S72). Where M
If it is determined that the message is an IDI start message, the type of MIDI data is set to "general data" (step S73). Normally, the sequencer outputs a start message at the start of the performance.
, The default value at the start of the performance becomes “general data”. Then, the display data is initialized (step S74). Thereby, all the LEDs are set to off. Thereafter, the sequence returns to step S70.

In step S72, the received data is "F
If it is determined that the received data is not “AH”, then it is checked whether the received data is a status byte (step S75). This is performed by checking whether the MSB of the received data is “1”. If it is determined that the received byte is a status byte, it is checked whether the received data is equal to or greater than "C0H" or whether the MIDI channel number is equal to or greater than "7" (step S76). Here, when it is determined that the received data is equal to or greater than “C0H” or the MIDI channel is equal to or greater than “7”, the contents of the status buffer are cleared (step S77), and then the sequence branches to step S70. Here, the status buffer stores the status byte in the RAM 42.
Is provided in the buffer. As a result, a MIDI message having a status byte equal to or greater than “C0H” or a MIDI channel number equal to or greater than “7” is excluded here. However, since such information is not generally included, there is no problem in performance or the like. Note that such data may be subjected to a through process.

In step S76, the received data is "C
If it is determined that the value is not greater than "0H" or the MIDI channel is not greater than "7", the received data is stored in the status buffer (step S78). Then, the content of the reception byte counter is set to “1” (Step S)
79). Thereafter, the sequence branches to step S70.

If it is determined in step S75 that the status is not the status, it is checked whether the contents of the status buffer is "0" (step S8).
0). Here, if it is determined that the value is “0”, the sequence returns to step S70. On the other hand, if it is determined that the number is not “0”, then it is checked whether the number of bytes of the received data is “1” (step S8).
1). If it is determined that the value is "1", the data of the second byte is stored in the buffer (step S8).
5) Then, the number of received bytes is set to “2”. Thereafter, the sequence branches to step S70.

On the other hand, if it is determined that the number of received bytes is not "1", that is, it is "2", the data of the third byte is stored in the buffer (step S82).
The number of received bytes is set to “1” (step S8)
3). Here, the reason why it is not set to “0” is to correspond to the running status. Next, a display process is performed (step S84). Details of this display processing will be described below. Thereafter, the sequence returns to step S70. Note that a MIDI message usually consists of 3 bytes.

Next, step S in the above MIDI input processing
The display processing performed at 84 will be described with reference to the flowchart in FIG.

In this display processing, first, the channel of the MIDI signal (data received from the MIDI device 2) is 1 to
It is checked whether there are four channels (step S9).
0). Here, if it is determined that the channel is not 1 to 4 channels, that is, 5 or 6 channels, the process branches to step S120 and shifts to 5 and 6 channel processing described later. On the other hand, if it is determined that the MIDI signal is for channels 1 to 4, it is then checked whether the MIDI signal is a note-on signal or a note-off signal (step S91).
Here, if it is determined that the MIDI signal is a note-on signal or a note-off signal, it is then checked whether or not the MIDI signal is for a channel (track) to be sound-processed (step S92). This is performed by referring to the table shown in FIG. 6 or FIG. 7 based on whether the performance data is general data or dedicated data, and based on the current mode value. For example, when the performance data is “dedicated data”, the mode value is “2”, and the channel is “3”, the data is to be subjected to sound generation processing with reference to the column of mode 2 and track 3 in FIG. Is determined.

Then, the MID of the channel to be sounded
If it is determined that the signal is an I signal, a through process is performed (step S93). This process converts the MIDI signal to RA
This is a process of starting the MIDI transmission operation by storing the data in the transmission buffer of M42. By this processing, the MIDI signal is transferred to the MIDI output terminal 45 and the electronic musical instrument device 3, and the sound generation processing is executed. On the other hand, if it is determined in step S92 that the signal is not the MIDI signal of the channel to be sounded, the process in step S93 is skipped. As a result, for example, in the case of data that does not sound only in the guide display, it is not output to the outside.

Next, it is checked whether or not the performance data is general data (step S94). If it is determined that the data is not general data, that is, it is dedicated data, channels 1 to 4 are not used for guide display.
Return to the input processing routine. On the other hand, if it is determined that the data is general data, it is then checked whether the channel is a channel to be displayed (step S95). This is performed by referring to the table shown in FIG. Here, if it is determined that the channel is not a channel to be displayed, the sequence proceeds from this display processing routine to MID.
It returns to the I input processing routine.

On the other hand, if it is determined that the channel is to be displayed, then key on / off LED on / off data is instructed (step S96). That is, in the case of note-on data, the display data of the key press display LED corresponding to the note number is set to on, and in the case of note-off data, it is set to off. Therefore, in the case of general data, only the key depression position is displayed based on the note on / off data, and the fingering (hand position) is not displayed.
After that, the sequence returns from this display processing routine to MI
It returns to the DI input processing routine.

If it is determined in step S91 that the MIDI signal is not a note-on signal or a note-off signal, then it is checked whether the MIDI signal is a volume message (step S97). Here, if it is determined that the message is a volume message, the sequence branches to step S101, and a through process is performed. This through processing is performed in step S
This is the same as the processing of 93. Thereafter, the sequence returns from the display processing routine to the MIDI input processing routine.

If it is determined in step S97 that the message is not a volume message, it is then checked whether the message is a damper on / off message (step S97).
98). Here, if it is determined that the message is a damper on / off message, then it is checked whether the mode and data attribute are to display the operation instruction of the damper pedal, in other words, whether the general data is other than mode 5. Is performed (step S99). If it is determined that the damper should not be displayed, the sequence proceeds to step S
The process branches to 101, and a through process is performed.

On the other hand, if it is determined that the mode is to display the damper, the damper pedal operation display data is turned on / off according to the damper on / off message (step S100), and then the sequence proceeds to step S1.
Branch to 01. If it is determined in step S98 that the message is not a damper on / off message, the sequence returns from the display processing routine to the MIDI input processing routine. Therefore, when the MIDI signal is a soft pedal on / off message, no display processing is performed.

Next, the details of the five- and six-channel processing performed when it is determined in step S90 that the MIDI signal channel is not one to four channels will be described with reference to the flowchart shown in FIG. .

In the 5 or 6 channel processing routine, the status byte is "A4H" or "A5H", that is, a polyphonic key pressure message of the MIDI channel "5" or "6" in which display data is stored. Is checked (step S12).
0). Here, if the status byte is “A4H” or “A
If not, the sequence returns from the 5 or 6 channel processing routine to the MIDI input processing routine. In this case, the MIDI signal can be configured to be through-processed in order to properly play the general data that also uses channels 5 and 6.

If it is determined in step S120 that the status byte is "A4H" or "A5H", then it is checked whether the second byte of the polyphonic key pressure message is "00" (step S120). S121). If it is determined that the value is "00", the third-byte fingering lower limit note number data is stored as the lower limit fingering target value (step S1).
22). Thereafter, the sequence returns from the 5- or 6-channel processing routine to the MIDI input processing routine.

On the other hand, if it is determined that the two-byte message of the polyphonic key pressure message is not "00", then it is checked whether the second byte of the polyphonic key pressure message is "01" (step S123). . If it is determined that the number is "01", the third-byte fingering upper limit note number data is stored as the upper limit fingering target value (step S124).

Next, the type of the performance data is set to "dedicated data" (step S1256). Note that the second byte of the polyphonic key pressure message is a note number. In the case of a standard piano, the note number is "21" or more (see FIG. 8). Is determined to be exclusive data including key press display data.

Next, it is checked whether the data of the channel should be displayed as a guide (step S126). This is performed by referring to the table shown in FIG. Here, when it is determined that the guide display should be performed, the fingering display movement mode is set (step S127). This fingering display movement mode value is set when the current upper and lower limit values of the left and right fingering (hand position) displays match the target values stored in steps S122 and S124. Is “0”. For example, a value of “1” is set when the current position is smaller than the target value (shifted to the left), and a value of “−1” is set when the current position is larger (shifted to the right). Thereafter, the sequence returns from the 5- or 6-channel processing routine to the MIDI input processing routine.
The same applies when it is determined in step S126 that the channel is not a channel to be displayed. Note that the upper limit value and the lower limit value of the target value exist as a pair, and even when only the lower limit value is changed, the processing of steps S125 to S127 is executed by receiving the upper limit value data of the same value as before. You.

In the above step S123, the second byte of the polyphonic key pressure message is "01".
If not, it is then checked whether the data is dedicated data (step S128). If it is determined that the data is not dedicated data, the sequence returns from the 5 or 6 channel processing routine to the MIDI input processing routine. On the other hand, if it is determined that the data is dedicated data, it is checked whether the second byte of the message is “02” (step S1).
29). Here, when it is determined that it is “02”,
It is checked whether or not the mode is one in which the guide display of the damper pedal operation should be performed (step S130). here,
If it is determined that the mode is not the mode for performing the guide display, the sequence returns from the 5 or 6 channel processing routine to the MIDI input processing routine.

On the other hand, if it is determined that the mode is to perform the guide display, then a damper display process is performed (step S133). This damper display processing
The processing is the same as the processing in step S104 described above.

In step S129, the message 2
If it is determined that the byte is not “02”, then the second byte is “21-108” (standard 88
(Note number range in the case of the key piano) is checked (step S132). Here, “21 to 1”
08 ", the sequence is:
The control returns from the processing routines 5 and 6 to the MIDI input processing routine. On the other hand, if it is determined that the message is "21 to 108", it is checked whether the message is for a channel to be displayed as a guide (step S).
133). Here, when it is determined that the display should be the guide display, the LED on / off data generation processing is performed similarly to the processing of step S96 described above (step S134). Thereafter, the sequence returns from the processing routines 5 and 6 to the MIDI input processing routine. The same applies when it is determined in step S140 that the channel is not a channel to be displayed.

Next, step S2 of the main processing routine
The fingering display data creation processing performed in step 4 will be described in detail with reference to the flowchart in FIG.

In this fingering display data creation processing, first,
It is checked whether a predetermined time (for example, several tens to several hundreds of milliseconds) has elapsed (step S150). This is performed by checking whether the value of the fingering display timer counter is equal to or greater than a predetermined value. If it is determined that the predetermined time has not elapsed, the sequence returns from the fingering display data creation processing routine to the main processing routine.

On the other hand, if it is determined that the predetermined time has elapsed, then it is checked whether or not the upper left hand fingering mode value is "0" (step S151). here,
If it is determined to be “0”, the sequence branches to step S159. On the other hand, if it is determined that the display is not "0", the left hand fingering display is all set to off (step S152). Next, the left hand upper limit fingering mode value is “1”.
Is checked (step S153). Here, if it is determined that the value is “1”, “1” is added to the current value of the left hand fingering display upper limit value (step S15).
5) Then, the sequence branches to step S156. On the other hand, if it is determined that the current value is not “1” (is “−1”), “1” is subtracted from the current value (step S1).
54).

Next, all the LED display data corresponding to between the updated current value of the upper limit and the current value of the lower limit are set to ON (step S156). Next, it is checked whether or not the current value of the left upper limit is equal to the target value (step S157). If it is determined that they are equal, the fingering mode value of the upper limit of the left hand is set to “0” (step S158), and otherwise, the process of step S158 is skipped.

Next steps S159, S160 and S1
In 61, the left hand lower limit value, the right hand upper limit value, and the right hand lower limit value are respectively described in steps S151 to S1 described above.
The same processing as the processing of 58 is executed, and the fingering display data is updated respectively. By appropriately setting the activation cycle (comparison value in step S150) of the fingering display data creation process, when the fingering display moves, the display does not jump to a different position, but the actual display. It is possible to move the display so that it flows like the movement of the hand.

Next, a modification of the guide display device 9 will be described. FIG. 9 is a front view illustrating a structure of a modified example of the guide display device 9. In this example, the LED for key press display in the upper row (row A) of the guide display device of FIG. 5 according to the first embodiment is omitted, and the configuration is a two-tier configuration. The display method may be the same as that for the left and right fingering display described above, in which the LED at the position where the key is to be pressed (70 and 71 in FIG. 9) may be flashed, or the color and brightness of the LED at the position where the key is to be pressed May be changed to improve the visibility. In this modified example, only one LED for the pedal is arranged at a position where there is no black key, and information on the damper pedal is displayed.

FIG. 10 is a front view showing the structure of still another modification of the guide display device 9. This modification is different from the LEs in the upper row (row A) in the first embodiment shown in FIG.
The arrangement of D is shifted corresponding to the positions of the black key and the white key. Further, an LED 81 for a black key and an LED 8 for a white key
The color of 0 may be changed. Such a configuration further improves the visibility.

Note that the above-described guide display device 9-3
In one example, the brightness can be changed by, for example, blinking the LED whose brightness is to be reduced, making the blinking cycle very fast, and controlling the time ratio of lighting.

As described above, according to the first embodiment of the present invention, the guide display is performed only when the soft pedal is depressed, so that the player can perform the guide display at an arbitrary position. Can be. Therefore, an appropriate guide display can be performed according to the level of the player.

(Embodiment 2) In this embodiment 2,
In addition to the mode switch, the guide panel 10 has a switch for indicating the purpose of the soft pedal, that is, a switch for indicating whether to use the soft pedal as a guide display or to use the soft pedal as an original soft pedal. (Hereinafter, referred to as a “pedal selection switch”).
Therefore, the guide panel interface circuit 44 in the guide control device 8 detects the state of the mode switch on the guide panel 10 and also detects the state of the pedal selection switch, and notifies the CPU 40.

The state change of the mode switch and the pedal selection switch provided on the guide panel 10 is shown in FIG.
Is detected in the guide panel processing performed in step S21 of the main processing routine shown in FIG. Details of the guide panel processing in the second embodiment are shown in the flowchart of FIG.

In this guide panel processing, first, it is checked whether or not the value of the guide panel processing timer counter is equal to or greater than a predetermined value (step S200). Return from the panel processing routine to the main processing routine. This process is the same as the process of step S50 in the guide panel process of the first embodiment shown in FIG.

On the other hand, if it is determined in step S200 that the value is equal to or larger than the predetermined value, the state of the mode switch and the pedal selection switch on the guide panel 10 is input (step S201). Next, step S5 in FIG.
2, the same two-time matching process is performed (step S202). Next, event detection processing (step S
203) is performed. This event detection processing is the same as the processing in step S53 in FIG. 17 except that an event of the pedal selection switch is also detected in addition to the mode switch.

Next, the presence or absence of an ON event of the mode switch is checked (step S204), and if it is determined that there is no ON event, the sequence proceeds to step S20.
Branch to 7. On the other hand, if it is determined that there is an ON event, then the mode number is updated (step S2).
05), initialization of the tone generator circuit 27 and initialization of the guide display data are performed (step S206). The processing of steps S204 to S206 is the same as the processing of steps S54 to S56 of step S17 in the guide panel processing of the first embodiment shown in FIG.

Next, the presence or absence of an event of the pedal selection switch is checked (step S207). Here, when it is determined that there is an event, it is checked whether or not the event is an ON event (step S20).
8). Here, if it is determined that the event is an ON event, a pedal selection flag is set (step S209), and
Otherwise, the pedal selection flag is cleared (step S210). Thereafter, the sequence returns from the guide panel processing routine to the main processing routine.

By the above processing, the pedal selection flag is set when the pedal selection switch on the guide panel 10 is turned on, and the pedal selection flag is cleared when the pedal selection switch is turned off. This pedal selection flag is referred to in a display data creation transmission processing routine described below.

The display data creation and transmission process according to the second embodiment is shown in the flowchart of FIG. This display data creation processing routine is configured by adding step S300 to the display data creation and transmission processing routine of the first embodiment shown in FIG. Therefore, the same parts as those in FIG.

In this display data creation and transmission process, first,
It is checked whether a predetermined time has elapsed (step S65). If it is determined that the predetermined time has elapsed, the contents of the display data transmission timer counter are cleared, and the sequence proceeds to step S300.

In step S300, it is checked whether the pedal selection flag is on. Then, when it is determined that the switch is on, it is recognized that the soft pedal is used as an instruction unit for instructing whether or not to perform the guide display, and the processing in step S66 and subsequent steps is executed. Thus, when the soft pedal is depressed, a guide display is performed. On the other hand, if it is determined that the pedal selection flag is off, the sequence returns from the display data creation processing routine to the main processing routine. As a result, the soft pedal is used to exhibit its original function.

In the second embodiment, the pedal selection switch is used as the instructing means for instructing whether or not to display the guide. However, without providing such a switch, a specific switch selected from existing switches can be used. When multiple switches are pressed, the pedal selection flag is set /
It can also be configured to reset. in this case,
There is an advantage that the number of switches can be reduced.

As described above, according to the second embodiment of the present invention, whether the soft pedal is used for guide display,
Since the user can select whether to use the electronic musical instrument as an original soft pedal, the degree of freedom in selecting an electronic musical instrument is increased.

As described in detail above, according to the present invention,
It is possible to provide an operation guide device for a keyboard instrument that allows a player to perform a guide display at a desired timing.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of a piano with a sound deadening function according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of the electronic musical instrument device according to the embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a guide control device according to the embodiment of the present invention.

FIG. 4 is a block diagram illustrating a configuration of a guide display device according to an embodiment of the present invention.

FIG. 5 is a front view showing an example of the structure of the guide display device according to the embodiment of the present invention.

FIG. 6 is an explanatory diagram of contents and processing of each track when exclusive performance data is used in the embodiment of the present invention.

FIG. 7 is an explanatory diagram of the contents and processing of each track when general performance data is used in the embodiment of the present invention.

FIG. 8 is an explanatory diagram showing contents of second and third bytes of display data used in the embodiment of the present invention.

FIG. 9 is a front view showing another example of the structure of the guide display device according to the embodiment of the present invention.

FIG. 10 is a front view showing still another structural example of the guide display device according to the embodiment of the present invention.

FIG. 11 is a flowchart showing main processing of the electronic musical instrument device according to the embodiment of the present invention.

FIG. 12 is a flowchart showing main processing of the guide control device according to the embodiment of the present invention.

FIG. 13 is a flowchart showing a timer interruption process of the guide control device according to the embodiment of the present invention.

FIG. 14 is a flowchart showing a MIDI reception interruption process of the guide control device according to the embodiment of the present invention.

FIG. 15 is a flowchart showing a MIDI transmission interruption process of the guide control device according to the embodiment of the present invention.

FIG. 16 is a flowchart showing a display data transmission end interruption process of the guide control device according to the embodiment of the present invention.

FIG. 17 is a flowchart illustrating a guide panel process of the guide control device according to the first embodiment of the present invention.

FIG. 18 is a flowchart showing an electronic musical instrument device input process of the guide control device according to the embodiment of the present invention.

FIG. 19 is a flowchart showing a display data creation and transmission process of the guide control device according to the first embodiment of the present invention.

FIG. 20 is a flowchart showing a MIDI input process of the guide control device according to the embodiment of the present invention.

FIG. 21 is a flowchart showing a display process of the guide control device according to the embodiment of the present invention.

FIG. 22 is a flowchart showing the fifth and sixth channel processes in the display process of the guide control device according to the embodiment of the present invention.

FIG. 23 is a flowchart showing fingering display data creation processing of the guide control device according to the embodiment of the present invention.

FIG. 24 is a flowchart showing a guide panel process of the guide control device according to the second embodiment of the present invention.

FIG. 25 is a flowchart showing a display data creation and transmission process of the guide control device according to the second embodiment of the present invention.

[Description of Signs] 1 mute type piano 2 MIDI device 3 electronic musical instrument device 4 keyboard circuit 5 speaker or headphones 6 panel 7 pedal 8 guide control device 9 guide display device 10 guide panel 40 CPU 42 RAM 43 display device interface circuit 45 MIDI output Terminal 46 MIDI input terminal 47 MIDI input / output terminal 52 LED

Claims (4)

[Claims] 1. An operation guide device for guiding an operation sequence of a keyboard instrument, comprising: guide display means for displaying the operation sequence; a pedal for instructing whether or not to display the operation sequence on the guide display means; Control means for displaying the operation order on the guide display means in response to an instruction from the user. 2. The operation guide device for a keyboard instrument according to claim 1, wherein the pedal is also used as a pedal of the keyboard instrument. 3. The apparatus according to claim 2, further comprising: an instruction unit for instructing a use of the pedal, wherein the control unit, when a predetermined use is designated by the instruction unit, responds to an instruction from the pedal. The operation guide device for a keyboard instrument according to claim 2, wherein the operation order is displayed on the keyboard. 4. The pedal according to claim 3, wherein said pedal is a soft pedal.
4. The operation guide device for a keyboard instrument according to claim 1.