JPS6215918Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a musical score recording information reading device for an automatic performance device.

Generally, one way to perform automatic performance is to record performance information on a musical score and read the recorded performance information to generate musical tones. Conventionally, automatic performance devices have been provided based on this idea. Attempts were made to do so.

However, in this technical field, there is still no means for effectively and appropriately reading the performance information of the musical score.

In view of the above circumstances, this invention was developed in an automatic performance device that reads performance information recorded on a magnetic recording medium attached to a musical score and automatically performs according to this performance information. The present invention provides a music score recording information reading device that can read music appropriately and further improves operability.The music score is inserted through the music score insertion hole that opens toward the operation direction, and the music score is read by the music score feeding mechanism. When the musical score is transmitted toward the music stand, a magnetic head reads the performance information magnetized on the magnetic recording medium of the musical score.

Hereinafter, embodiments of this invention will be described with reference to the drawings. FIG. 1 is an external view of an automatic performance device 1 for an electronic organ to which this invention is applied, and in this figure, reference numeral 2 indicates a case body. The top panel 3 of the case body 2 is provided with a power switch 4 and an operation button 5 at its front part 3a, a musical score insertion hole 6 in the left and right direction is formed at its stepped part 3b, and a musical score insertion hole 6 in the left and right direction is formed at its step part 3b.
A music score lead-out hole 7 in the left-right direction is formed at c, and a music stand 8 is provided along the rear edge of the music score lead-out hole 7.

This automatic performance device 1 inserts a musical score 9 into a musical score insertion hole 6.
When inserted into the case body 2, this sheet music 9 is inserted into the case body 2.
It is constructed so that it can be automatically set on the music stand 8 by the musical score recording information reading device 10 shown in FIG. As described above, the musical score insertion hole 6 is formed in the stepped portion 3b of the front panel 3, that is, the musical score insertion hole 6 is formed in the stepped portion 3b located opposite to the person operating the automatic performance device 1 in the operating direction. It is formed so as to open toward the front, and is positioned so that the musical score 9 can be set from the front of the device. Further, the automatic performance device 1 is
When setting the musical score 9 on the music stand 8, the performance information recorded on the musical score 9 is read by the musical score recording information reading device 10, and this read information is processed to drive an electronic organ, which will be described later. It is something. In this case, as shown in FIGS. 1 and 2, the score 9 has a score 9a such as a melody printed on the upper part of its surface, and all the musical notes necessary for playing the electronic organ are printed in the vertical direction on the right end. A magnetic tape 8b (magnetic recording medium) on which information (for example, melody, chord, bass sound, timbre, rhythm, etc.) is recorded is attached.

The musical score recording information reading device 10 passes the musical score 9 from the musical score insertion hole 6 to the musical score lead-out hole 7, and inserts the musical score 9 into the music stand 8.
It is constructed so that the performance information recorded on the musical score 9 is read inside the case body 2 when the musical score 9 is set.The details are as follows. That is, inside the case body 2, a support block 11 shown in FIG. 3 is disposed near the bend between the stepped portion 3b and the rear portion 3c of the top panel 3. The support block 11 has a score guide passage 12 formed therein for guiding the score 9 inserted through the score insertion hole 6 through the score lead-out hole 7 toward the music stand 8. The score guide passage 12 includes an introduction part 12a facing the score insertion hole 6, a curved part 12b that curves from the introduction part 12a in the direction of the score lead-out hole 7, and a lead-out part continuous with the curved part 12b and facing the score lead-out hole 7. 12c. Inside this support block 11, a support block 12 is located near the curved part 12b of the musical score guide passage 12, and a part of its circumferential surface is aligned with the curved direction of the curved part 12a.
A driving roller 13 facing into the roller 2b, and rollers 14 and 15 having part of their circumferential surfaces facing the driving roller 13 at the curved portion 12b are provided. In this case, the roller 14 is located closer to the introduction part 12a, and the roller 15 is located closer to the lead-out part 12c. The drive roller 13 is rotated by a drive motor 16 provided on its side.
The score 9 introduced from the score insertion hole 6 is transferred to the roller 1.
4 and 15, and insert the same score 9 into the score derivation hole 7.
and the music stand in eight directions. Based on such a configuration, the drive rollers 13 and 1
4 and 15 constitute a score feeding mechanism 17. A magnetic head 18 is mounted within the support block 11 so as to face the lead-out portion 12c of the musical score guide passage 12. This magnetic head 18 reads performance information recorded on the magnetic tape 9b of the musical score 9 when the musical score 9 passes through the lead-out section 12c. Furthermore, within the support block 11, a score detector 19 is disposed that faces the introduction section 12a of the score guide passage 12 and detects the leading end of the score 9, and a score detector 19 that faces the curved section 12b and detects the rear end of the score 9. A musical score detector 20 is provided to detect the musical score 9, and a musical score detector 21 is provided facing the derivation section 12c and detects the leading end of the musical score 9 to detect when the musical score 9 has reached a fixed position. ing. Note that these score detectors 19, 2
0 and 21 are both reflection type photoelectric detectors. Further, inside the support block 11, leaf springs 22, 23 are provided facing the lower end of the lead-out portion 12c.
are arranged so as to face each other. These leaf springs 22 and 23 are arranged so that the musical score 9 is connected to the musical score guide path 1.
2, and when the rear end passes between the driving roller 13 and the roller 15, the lower end of the musical score 9 is elastically clamped and held in place (the musical score 9 is (to prevent it from sliding downward). In the above configuration, the magnetic head 1
8. Each output of the musical score detectors 19, 20, 21 is transmitted to a reading control circuit 24 provided inside the case body 2;
The data is sequentially sent to a RAM (random access memory) 25 (see FIG. 4) for processing. Further, the drive motor 16 is connected to the reading control circuit 2.
It is designed to be driven and stopped based on a command signal from 4. . The operation buttons 5 provided on the front part 3a of the top panel 3 include a write button 5a, a read button 5b, and an autocode button 5, as shown in FIG.
c, an auto bass button 5d, an arpeggio button 5e, a tone button 5f, a rhythm button 5g, and a melody button 5h.

The automatic performance device 1 configured as described above is used by being placed on the top surface of an electronic organ 31 (electronic musical instrument), for example, as shown in FIG. In this case, automatic performance device 1 and electronic organ 3
1 is electrically connected by a multicore cord or the like (not shown).

Next, the operation of the automatic performance device 1 having the above configuration will be explained. This automatic performance device 1 first writes the performance information written on the magnetic tape 9b of the musical score 9 into the internal RAM 25, and then
By sequentially reading out the contents of the electronic organ 31
It performs automatic performance.

First, the operation of setting the musical score 9 on the music stand 8 and writing the performance information recorded on the magnetic tape 9b of the musical score 9 into the RAM 25 will be described. First, when the tip of the score 9 is inserted into the score insertion hole 6 so that the tip reaches the drive roller 13 and the roller 14, the score detector 19 detects this and sends a detection signal to the reading control circuit 24. . The read control circuit 24 receives the detection signal, outputs a drive signal to the drive motor 16, and controls the drive motor 16 to the third drive motor.
Rotate in the direction of the arrow in the diagram. As a result, the musical score 9 moves within the musical score guide passage 12 toward the musical score lead-out hole 7 and the music stand 8 while being held between the driving rollers 13 and the rollers 14 . When the tip of the musical score 9 reaches the musical score detector 21, the musical score detector 21 detects this and sends a detection signal to the reading control circuit 24. The reading control circuit 24 receives the detection signal from the musical score detector 21, and controls each part of the musical score detector 21 and
Set RAM 25 to data readable state.
When the musical score 9 moves further and the upper end of the magnetic tape 9b reaches the magnetic head 18,
The magnetic head 18 starts reading performance information recorded on the magnetic tape 9b. And sheet music 9
Performance information that is sequentially read out as the player moves is sent to the reading control circuit 24. The read control circuit 24 converts the performance information sent from the magnetic head 18 into digital signals, and then sequentially sends the signals to the RAM 25 and stores them therein. In this way, when the musical score 9 moves toward the musical score lead-out hole 7 and the music stand 8 while supplying the performance information of the magnetic tape 9b to the reading control circuit 24, and its rear end passes the musical score detector 20,
The score detector 20 detects this and sends a passage detection signal to the reading control circuit 24. The reading control circuit 24 receives this passage detection signal, turns off the drive signal sent to the drive motor 16, and turns the drive motor 1 off.
Stop 6. In this way, the musical score 9 is correctly set at the specified position on the music stand 8, and
All the performance information recorded on the magnetic tape 9b of the musical score 9 is read by the magnetic head 18 and stored in the RAM 25 via the reading control circuit 24.
In this case, since the musical score 9 is held between the leaf springs 22 and 23, there is no need for the musical score 9 to fall toward the driving rollers 13 and 15.

Next, a case will be described in which the electronic organ 31 is caused to perform automatically based on the performance information written in the RAM 25. For example, if a practitioner of the electronic organ 31 wants to practice a melody and automatically play chords and bass notes, press the auto chord button 5c and the auto bass button 5d, and then press the read button 5.
Press b. As a result, the autochord performance information and the autobass performance information are sequentially read out from the RAM 25 in the order in which the songs progress, and are sequentially supplied to the electronic organ 31. As a result, the electronic organ 31 automatically plays the chords and bass tones of the song, and the practitioner can practice playing the melody while listening to these chords and bass tones.

For example, if a practitioner wants to practice playing chords and playing bass sounds, he or she can first press the melody button 5h and then press the read button 5b, and then the electronic organ 31
will automatically play only the melody, allowing practitioners to play chords and practice bass sounds while listening to the melody.

In this way, in the automatic performance device 1 shown in FIG. 1, the performance information of the musical score 9 can be written by
By operating the operation buttons 5 after writing to the RAM 25, the following automatic performance or automatic setting can be performed for each button. That is, when the auto chord button 5c is pressed, a chord is automatically played, when the auto bass button 5d is pressed, a bass note is automatically played.
If you press the arpeggio button 5e, you can automatically play an arpeggio, if you press the tone button 5f, you can automatically set the tone, if you press the rhythm button 5g, you can automatically play a rhythm note, and if you press the melody button 5h, you can automatically play a melody. . Also, as mentioned in the above example, if you press 2, 3, 4... of the buttons 5c to 5h, you can select 2, 3, 4, etc. corresponding to the pressed button. Automatic performance or automatic settings can be made.

Note that in the above embodiment, the musical score detector 21
The reading control circuit 24 receives a detection signal from the
Although the RAM 25 is set in a state where data can be read, the leading edge of the musical score 9 is detected by the musical score detector 20 without using the musical score detector 21 (that is, the leading edge of the musical score 9 is detected by the musical score detector 20) (used for both edge detection and rear edge detection), and after a slight delay from this detection, the read control circuit 24, RAM
25 may be set to a data readable state.

As explained above, according to this invention, the musical score is inserted through the musical score insertion hole that opens toward the operating direction, and the musical score is sent toward the music stand by the musical score feeding mechanism, and the musical score is directed toward the music stand. When the score is sent out, the performance information recorded on the magnetic recording medium of the score is read by the magnetic head, so that the operator can automatically insert the score into the music stand by simply inserting the score into the score insertion hole. It can be set to Furthermore, it is possible to reliably read the performance information recorded on the musical score, and it is possible to automatically perform the performance based on the read performance information. By using an automatic performance device to which the musical score recording information reading device of this invention is applied, it is possible to improve practice efficiency when practicing, for example, an electronic organ, and even beginners who can only play melodies can use the electronic organ. You can also get the effect of being able to play a complete organ.

[Brief explanation of the drawing]

Figure 1 is an external view of an automatic performance device for an electronic organ to which this invention is applied, Figure 2 is an example of a musical score equipped with a magnetic recording medium that records performance information, and Figure 3 is a musical score based on this invention. 4 is a cross-sectional view showing an example of a recorded information reading device; FIG. 4 is a block diagram showing a part of the circuit configuration within the automatic performance device shown in FIG. 1; and FIG.
This figure shows details of the operating switch 5 in FIG. 1, and FIG. 6 shows the automatic performance device shown in FIG. 1 mounted on an electronic organ. 1... Automatic performance device, 6... Score insertion hole, 8...
...Music stand, 9... Musical score, 9b... Magnetic recording medium (magnetic tape), 10... Musical score recording information reading device,
17... Score feeding mechanism, 18... Magnetic head, 3
1...Electronic musical instrument (electronic organ).

Claims (1)

[Scope of utility model registration request] In an automatic performance device that reads performance information recorded on a magnetic recording medium provided on a musical score and performs automatically according to this performance information, there is a musical score insertion hole that opens in the operating direction, and a music stand that opens from the musical score insertion hole. a music score feeding mechanism that sends out the music score toward the music score; and a magnetic head that reads performance information recorded on the magnetic recording medium of the music score when the music score is sent out from the music score insertion hole toward the music stand. A music score recording information reading device is provided.