JPH0733270Y2 - Automatic playing piano performance start time display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a performance start time display device for an automatic performance piano that is suitable for use in notifying the start timing of automatic performance.

"Prior Art" The operation of an automatic performance piano includes a recording mode for recording a performance and an automatic performance mode for automatically performing the recorded performance information (or performance information supplied from the outside). Further, in the performance mode, it is possible to play an ensemble song and a part-cancelled song. In the case of an ensemble song, the piano part in the ensemble is played, and in the case of a part canceled song, only the right-hand side or left-hand side part is played. Such a performance mode is used when an actual performance is added along with the automatic performance. In this case, it is necessary to indicate to the performer when the automatic performance starts in order to synchronize the actual performance with the automatic performance.

Therefore, information indicating the start of a song is incorporated into the performance information as a pedal on / off signal, and the loud pedal is moved up and down in accordance with the tempo of the song during reproduction.

[Problems to be Solved by the Invention] However, the conventional device has a drawback in that the movement of the pedal is difficult to see and it is difficult to set the start timing of the performance. Furthermore, in an automatic piano without a pedal drive mechanism during playback, there is a problem that the start timing of the performance cannot be known.

If a specific key is driven to actually produce a sound instead of the movement of the pedal, or if a metronome function with a predetermined sound is added, the timing can be easily adjusted, but the sound is not related to the performance. Occurs, which is not musically preferable.

The present invention has been made in view of the above-mentioned circumstances, and is an automatic performance piano in which a performance start timing is easily set and an unnecessary sound does not occur in musical expression when an ensemble music, a part cancel music, or the like is performed. The purpose of the present invention is to provide a performance start time display device.

[Means for Solving the Problems] In order to solve the above problems, in the device according to the first aspect, as shown in FIG. A detection means 1 for detecting information,
When the detection means 1 detects the identification information, a determination means 2 for outputting a display command according to the performance start time information included in the performance data and a display means 3 for displaying in a visually observable display state. The display means 3 is characterized in that the display state is changed when the display command is output.

Further, in the invention according to claim 2, FIG. 1 (2)
As shown in FIG. 2, the detection means 5 for detecting predetermined identification information from the supplied performance data, and when the detection means 5 detects the identification information, predetermined detection information is provided according to the performance start time information included in the performance data. It is characterized by comprising a control means 6 for outputting a drive command for driving the key 8 and a drive means 7 for driving the key 8 to a non-sound generation position according to the drive command.

"Operation" In the invention according to claim 1, when the detection means 1 detects the identification information, the determination means 2 outputs a display command according to the performance start time information included in the performance data. This display command is supplied to the display means 3, which causes the display means 3 to change the display state.

In the device according to the second aspect, when the detection means 5 detects the identification information, the control means 6 supplies a drive command to the drive means 7 in accordance with the performance start time information included in the performance data. As a result, the drive means 7 drives the key 8 to the unproduced position according to the drive command.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

A: First Embodiment (1) Structure of the First Embodiment FIG. 2 is a side view showing the schematic structure of the first embodiment of the present invention. In this figure, the automatic piano 71 has a plurality of keys 73.
, A string striking mechanism 77 that transmits the movement of each key 73 to the hammer 75, a string 79 that is strung by the hammer 75, and a string
It has a damper 78 for suppressing the vibration of 79, a pedal mechanism (not shown), and a solenoid (see reference numeral 80 in FIG. 3) for driving this pedal mechanism.

The key 73 is swingable around the balance pin 81,
When the key 73 is pressed or the plunger is projected from the solenoid 83 to rotate the key 73, this movement is transmitted to the hammer 75 and the damper 78 via the string striking mechanism 77. This causes the damper 78 to move away from the strings,
The hammer 75 rotates counterclockwise in the drawing to strike a string.

A shutter 87 is attached to the key 73.
A position sensor 89 is provided within the moving range of the. The output signal of this position sensor 89 is supplied to the controller 85,
Here, it is determined whether the key is pressed or released.

The controller 85 has the configuration shown in FIG. In the figure, a main microcomputer 91 controls each part of the circuit, and a local microcomputer 93 for controlling a floppy disk and a key scanning microcomputer 95 operate under the control of the main microcomputer 91. It has become. Also, the main microcomputer 91 has a CPU, ROM, RAM, EEPROM, backup RAM, etc., and has a logical operation function, and data is exchanged with an external circuit connected to the input / output unit via the common bus. It is designed to input and output.

The operation panel 97 has various switches operated by the operator and a display section 97a, and is adapted to receive the switch information output from the remote operation switch. Each switch of the operation panel 97 is scanned by the local microcomputer 93, and the switch information obtained by this and the switch information supplied from the remote operation switch are supplied to the main microcomputer 91. Further, the local microcomputer 93 controls the floppy disk driver 99 to make various displays on the display section 97a based on the performance information read from the floppy disk 101.

Here, the appearance of the operation panel 97 is shown in FIG. In the figure, the two-dot chain line shows the main body 10 of the automatic piano,
The operation panel 97 is provided in the upper right part of the upper front plate 10b of the main body 10 and immediately below the roof part 10a. This display part 97a is
As shown in the figure, it has a song name display portion 97a ₂ for displaying the song title and the like, and a song number display portion 98a ₁ for displaying the song number. In addition, the floppy disk drive 99 is at the left end of the operation panel 97.
Are arranged.

The above-mentioned local microcomputer 93 supplies the performance information read from the floppy disk 101 to the main microcomputer 91, and writes the performance information output from the main microcomputer 91 to the floppy disk 101. In addition, the local microcomputer 93 is connected to an external electronic musical instrument via the MIDI input / output unit 103 and M
IDI information is to be exchanged. Therefore,
The main microcomputer 91 can send and receive MIDI information to and from an external electronic musical instrument via the local microcomputer 93.

On the other hand, the key scanning microcomputer 95 sequentially scans the output signal of the position sensor 89 for each key, and detects the key depression and key release of the key 73 based on this output signal. And
The detected key depression / key release information and the key code indicating the key are supplied to the main microcomputer 91. Further, the main microcomputer 91 creates performance information from the information indicating the depression / release of the pedal supplied from the pedal sensor 90 added to the pedal mechanism and the above-mentioned key depression / release information. When the performance information read from the floppy disk 101 is supplied via the local microcomputer 93, the main microcomputer 91 controls the solenoid driver 105 according to this information, whereby the solenoid driver 105 causes the solenoid for the key to operate. 83 and pedal solenoid 80 are driven to perform automatic performance.

In the figure, 107 is a power supply unit that supplies power to each part of the apparatus.

(2) Operation of Embodiment Next, the operation of this embodiment having the above-described configuration will be described.

FIG. 5 is a flowchart showing the operation of this embodiment, showing the operation of the local microcomputer 93.

First, in step SPa1, the floppy disk 101
To read the header part of the performance data. In this header part, identification data indicating that the song is an ensemble song or a part-cancelled song is placed as a flag. When this flag is set, the ensemble flag set in the local microcomputer 93 is set. Set AF or part cancel flag PF.

Next, in step SPa2, it is determined whether the ensemble flag AF or the part cancel flag PF is set. If this determination is "YES", turns off the track number display section 97a ₁ (step SPa3), in the case of "NO" to turn on the music number display section 97a ₁ (step SPA4). Next, in step SPa5, performance data is read from the floppy disk 101 and sent to the main microcomputer 91. Then, in step SPa6, the display data is output to the display unit 97a.

Next, the process proceeds to step S1a7, and it is determined whether the ensemble flag AF or the part cancel flag PF is set. If this determination is "NO", that is, if it is a normal music piece, the process returns to step SPa5 again, and the performance data read from the floppy disk 101 is sent to the main microcomputer 91. After that step SPa5 → SPa6
The performance data is sequentially transferred to the main microcomputer 91 through a loop of → SPa7 → SPa5. The main microcomputer 91 drives the solenoid driver 105 based on the transferred performance data to perform automatic performance.

On the other hand, if the decision result in the step SPa7 is "YES", then the processing advances to the step SPa8, and it is decided whether or not the performance data is data for instructing to turn on the loud pedal, that is, the loud pedal NO data. For example, according to the MIDI standard, the loud pedal NO data is (B0407F) _H , so it is determined whether the performance data is (B0407F) _H. The loud pedal NO data in this case is a loud pedal drive signal for instructing the driving of the loud pedal in the automatic performance and for timing the performance.

If this step SPa8 determination is “YES”, then step SPa
Proceed to step 9 to light the track number display section 97a ₁ . As a result, the song number of the song is displayed in the song number display area 97a ₁ . Then, in step SPa12, it is determined whether or not the note-on event is supplied. The note-on event is a signal instructing key depression in actual performance. Before the performance starts, that is, in the period in which the pedal NO data or the pedal OFF data for timing is supplied, the determination in step SPa12 is "NO". Therefore,
The process returns to step SPa5, and the determination of step SPa7 is performed via step SPa6. In this case, the ensemble flag
Since the AS or part cancel flag PF remains set, the determination in step SPa7 is "YES", and the determination in step SPa8 is performed again. If this determination is "NO", the flow proceeds to step SPa10, and it is determined whether or not the performance data is loud pedal off, and the MIDI code is (B04000) _H. If this determination is “NO”, it means that other data has been supplied, and the routine proceeds to Step SPa12. If the determination in step SPa10 is "YES", turns off the track number display section 97a ₁ proceeds to step SPA11, then proceeds to step SPA12.

Here, if the actual performance has not started yet,
The determination of SPa12 continues to be “NO”, and as a result, the above processing is repeated. That is, when the loud pedal NO data is supplied, the song number display section 97a ₁ lights up (step
SPa8, SPa9), the Raudopedaruo OFF data is supplied music number display portion 97a ₁ is turned off (SPa10, SPa11). In this case, the loud pedal on / off data and the loud pedal off data are set in advance on the floppy disk 10 according to the tempo of the song.
Since the data is written in ₁ , the blinking of the song number display portion 97a ₁ by the above process is a blinking in accordance with the tempo of the song.

And when the actual performance starts, the floppy disk
The note-on event is read from 101 (step SPa
5), this is supplied to the main microcomputer 105. The processing of the local microcomputer 93 proceeds in the order of SPa6 → SPa7 → SPa8 → SPa10 → SPa12,
The determination in step SPa8 is “YES”. As a result, turning on the track number display section 97a ₁ proceeds to step SPa13. This is because the loud pedal OFF data is supplied at the final timing of the blinking processing of the music number display portion 97a ₁ and the music number display portion 97a _{1
If 1} is turned off, the track number display area 97a
_{This is} to turn on ₁ again. And the song number display section 97a
After illuminating ₁ , the process moves to step SPa14 to clear the ensemble flag AF or the part cancel flag PF, and the process returns to step SPa5.

On the other hand, when the main microcomputer 91 receives the first note-on event transfer from the local microcomputer 93, the solenoid driver 10 receives the first note-on event.
Drive 5 to start automatic performance. At this time, the performer can know the start timing of the music from the blinking timing of the music number display section 97a ₁ , so that the player can start his own performance in time with the automatic performance timing of the main microcomputer 91. Since the loud pedal NO data and the loud pedal OFF data before the start of the performance are transferred to the main microcomputer 91 by the processing of step SPa5, the main microcomputer 91 drives the solenoid driver 105 based on these data. As a result, the excitation / non-excitation of the pedal solenoid 80 is controlled, and the loud pedal moves up and down. That is, the loud pedal moves up and down in synchronization with the blinking of the music number display section 97a ₁ to notify the start of the performance.

Next, after moving from step SPa14 to step SPa5, the process proceeds to step SPa6 → SPa7, but since the ensemble flag AF or the part cancel flag PF has been reset at step SPa14, the determination at subsequent step SPa7 is “NO”. As a result, after this step SPa5 → SPa6 →
The performance data is sequentially supplied to the main microcomputer 91 through a loop of SPa7 → SPa5. Then, the main microcomputer 91 drives the solenoid driver 105 based on the performance data to perform an automatic performance.

B: Second Embodiment Next, a second embodiment of the present invention will be described.

(1) Configuration of Embodiment The electrical and mechanical configuration of this embodiment is the same as that of the first embodiment described above. However, the instruction of the performance start timing in this embodiment is given by the main microcomputer 91 moving a predetermined key to the extent that no sound is produced, unlike the above-mentioned embodiments.

(2) Operation of Embodiment Next, the operation of this embodiment will be described.

FIG. 6 is a flow chart showing the operation of the present embodiment, showing the operation of the May microcomputer 91.

First, in step SPb1, performance data is received from the local microcomputer 93. In the header portion of this performance data, as described above, identification data indicating that it is an ensemble song or a part canceled song is arranged as a flag. When this flag is set, the main microcomputer
Set the ensemble flag AF or part cancel flag PF set in 91.

Next, in step SPb2, it is determined whether the ensemble flag AF or the part cancel flag PF is set. If this judgment is “NO”, it means that the song is a normal song and the tempo display is not required, so step SP
Move to b12 and immediately perform playback performance processing.

On the other hand, when the determination in step SPb2 is "YES", the process proceeds to step SPb3 and it is determined whether or not the performance data is pedal ON data. If this determination is "YES", the process proceeds to step SPb4, and a control signal for driving the key of the key NO1 (the lowest tone key at the left end of the keyboard) is supplied to the solenoid driver 105. As a result, the solenoid driver 105 supplies a current to the key solenoid corresponding to the key NO1 to drive the key. The driving of the key is such that no sound is produced, but the player can visually recognize that the key has moved. Next, in step SPb5, a control signal for turning on the loud pedal is supplied to the solenoid driver 105. As a result, the solenoid driver 105 supplies a current to the pedal solenoid 80 to drive the loud pedal. After the processing of this step SPb5,
Go to step 6.

In step SPb6, it is determined whether or not a note-on event has been supplied. If the performance is not yet started, the determination is "NO", and the process returns to step SPb1. Then, in step SPb1, new performance data is fetched, and the process proceeds to step SPb2. At this point, the ensemble flag AP or the part cancel flag PF remains set, so the determination in step SPb2 is "YE
S ”, and the process proceeds to step SPb3. If the performance data newly supplied in step SPb1 is pedal OFF data, the determination in step SPb3 is "NO", the determination in step SPb7 is "YES", and the process proceeds to step SPb8. In step SPb8, the control signal for returning the key of the key NO1 is supplied to the solenoid driver 105. This allows
The solenoid driver 105 deenergizes the solenoid corresponding to the key of the key NO1 and returns this key to its original position. Then, when moving to step SPb9, the solenoid driver 105
Signal to turn off the loud pedal. As a result, the solenoid driver 105 deenergizes the pedal solenoid 80 that drives the loud pedal, and turns off the loud pedal. After the processing of this step SPb9, it moves to step SPb6 and determines whether or not a note-on event is supplied. In this case, use the loud pedal as described above.
Since OFF data has been supplied, the determination at step SPb6 becomes "NO", and the process proceeds to step SPb1 again. After that, the above processing is repeated until the note-on event is supplied. That is, when the pedal ON data is supplied, the key of the key NO1 is driven to the extent that it does not sound and the loud pedal is turned on (steps SPb3, SPb4, SPb5),
When the pedal OFF data is supplied, the key and the loud pedal are returned to their original positions (steps SPb7, SPb8, SPb
9). Since the cycle of this on / off processing corresponds to the tempo of the music, the player can know the tempo and start timing of the music by observing the movement of the key of the key NO1.

And when a note-on event is provided, step
The determination of SPb2 → SPb3 → SPb7 is performed, and the process proceeds to step SPb6.
The determination in step SPb6 is "YES", and step SPb6
A control signal for returning the key to the key NO1 at 10 is supplied to the solenoid driver 105. This is because if the key of the key NO1 remains in the depressed state, it will affect the subsequent performances, so that it is surely turned off here. Next, in step SPb11, the ensemble flag AF or the part cancel flag PF is reset. Then, in step SPb12, a reproduction performance process is performed based on the note-on event, and the process returns to step SPb1 again.

Following the processing of step SPb1, the determination of step SPb2 is performed, but in step SPb11, the ensemble flag AF is set.
Alternatively, since the part cancel flag PF has been reset, this judgment is "NO". Therefore, the processing immediately shifts to the reproduction performance processing of step SPb12. After that, an automatic performance is performed through the loop of steps SPb1 → SPb2 → SPb12 → SPb1.

Instead of blinking the music number display section 97a ₁ or swinging the key NO1, for example, an accessory such as a tact without sound can be operated to display the performance start time.

Further, in each of the above-described embodiments, since the loud pedal signal is used, there is no need to use a dedicated signal for displaying the performance start timing, which is versatile.

In addition, since no special operation is required at the time of recording, there is an advantage that the performer can easily record the performance start timing signal.

[Advantage of Invention] As described above, according to the invention described in claim 1, the detecting means for detecting the predetermined identification information from the supplied performance data, and the case where the detecting means detects the identification information. Comprises a determination means for outputting a display command according to the performance start time information included in the performance data, and a display means for displaying in a visually observable display state, and the display means outputs the display command. Since the display state is changed, the performance start timing can be known from the change in the display state of the display means.

According to the invention as defined in claim 2, the detecting means for detecting the predetermined identification information from the supplied performance data, and the performance included in the performance data when the detecting means detects the identification information. Since the control means for outputting the drive command for driving the predetermined key in accordance with the start timing information and the drive means for driving the key to the unproduced position in response to the drive command are provided, the performance start timing can be set to a specific key. You can know from the movement.

Therefore, according to the first and second aspects of the invention, when playing a part-cancelled piece, an ensemble piece, or the like, it is easy to visually check the timing of starting the performance, and no sound that disturbs the musical expression is generated. The advantage is obtained.

[Brief description of drawings]

1 (1) and 1 (2) are basic configuration diagrams showing a schematic configuration of the present invention, FIG. 2 is a partial side sectional view showing a mechanical configuration of a first embodiment of the present invention, and FIG. FIG. 4 is a block diagram showing the electrical configuration of the embodiment, FIG. 4 is a front view showing the appearance of the display unit 97 in the embodiment, FIG. 5 is a flow chart showing the operation of the embodiment, and FIG. It is a flowchart which shows operation | movement of the 2nd Example of a device. 1 ... Detection means, 2 ... Judgment means, 3 ... Display means, 5
... Detecting means, 6 ... controlling means, 7 ... driving means, 8 ...
… Keys, 73 …… keys, 83 …… key solenoids (driving means),
91 ... main microcomputer (detection means, control means), 93 ... local microcomputer (detection means, determination means), 97a ... display section (display means), 105 ...
Solenoid driver (driving means).

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-56-11674 (JP, A) JP-A-62-229196 (JP, A) JP-A-62-231295 (JP, A) JP-A-2- 254495 (JP, A)

Claims (2)

[Scope of utility model registration request] 1. A detecting means for detecting predetermined identification information from supplied performance data, and when the detecting means detects the identification information, outputs a display command in accordance with performance start time information contained in the performance data. And a display means for displaying in a visually observable display state, the display means changing the display state when the display command is output. Time display device. 2. A detecting means for detecting predetermined identification information from the supplied performance data, and when the detecting means detects the identification information, a predetermined key is set according to the performance start time information contained in the performance data. An apparatus for displaying a performance start time of an automatic performance piano, comprising: a control means for outputting a drive command to drive and a drive means for driving the key to a non-sounding position according to the drive command.