JPH08248956A - Playing instruction device - Google Patents

Abstract

PURPOSE: To announce the points mistaken in playing operation to a player and to enable this player to repetitively and emphatically practice these points. CONSTITUTION: Playing operators include keyboards 11, etc., and supply first playing information on key events, etc., according to key touch or key released when these operators are touched or released by an operator. On the other hand, a playing information supplying means supplies the second playing information on previously stored key touch instruction data, etc. A playing instructing means informs the operator of which is the keyboards 11 to be operated in correspondence to the second playing information by appealing to the visual sensation and/or hearing sensation of the operation. A comparing and deciding means makes decision as to whether the first playing information and the second playing information are coincident or not. Then, when the operator makes operation in conformity with the information of the playing instructing means, the first playing information is supplied according to thereto. The first and second playing information then attain coincidence.If the operator operate an operation different from the information i.e., an erroneous operation, the first and second pieces of information do not attain coincidence at that time. A control means 1, thereupon, makes judgment that the operator makes erroneous operation when the result of the decision by the comparing and deciding means fails to attain the coincidence. The supply of the second playing information from the erroneously operated point to a prescribed section is then repeated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a performance instructing device having a function of notifying a player of performance information such as finger placement and key depression position as an aid when playing an electronic musical instrument.

[0002]

2. Description of the Related Art Conventionally, as an electronic musical instrument with a key-depression instructing function, which has a function of instructing a player which key should be depressed as an aid when playing an electronic musical instrument, a light emitting diode ( There is a device which has an LED) and sequentially emits an LED corresponding to a key to be pressed in accordance with performance information. Further, recently, when the key depression instruction by the LED and the key actually operated by the performer do not match, that is, when an error occurs in the performance, the key depression instruction is started again before the point where the error occurs. There are things I tried to do.

[0003]

However, in the conventional technique, the key is pressed before the portion where the performance is mistaken, for example, at the beginning of the bar including the mistaken portion or at the beginning of one or more bars before the mistaken portion. Since the instruction is started, the performer does not know which part has been mistaken, and only repeats the performance according to the key depression instruction again, which does not directly lead to improvement of the performance technique.

The present invention has been made in view of the above points, and informs a player of a mistake in a performance operation,
It is an object of the present invention to provide a performance instructing device that allows repeated practice with emphasis on that part.

[0005]

A performance instruction device according to the present invention supplies a plurality of performance operators for supplying first performance information corresponding to a performance operation and second performance information stored in advance. Performance information supplying means, performance instructing means for informing the performance operator to perform a performance operation corresponding to the second performance information supplied from the performance information supplying means, the first performance information and the performance information. When the comparison and determination means compares and determines the second performance information, and when the comparison and determination means determines that the first and second performance information do not match, from the portion determined as the mismatch to a predetermined section The control means for controlling the second performance information to be repeatedly supplied.

[0006]

The performance operator is, for example, a keyboard, and supplies first performance information such as a key event corresponding to a key depression or key release operation. The performance information supply means is a memory or the like in which performance information corresponding to the performance music is stored in advance. The performance instruction means
A performance operation is performed by visually instructing the operator with an LED or the like provided near the upper side of the keyboard, or aurally instructing the operator by producing a musical tone corresponding to the second performance information. This is to inform the performance operator to be performed. The comparison determination means determines whether the first performance information and the second performance information match. That is, the performance instructing means notifies the performance operator to be operated according to the second performance information. The operator operates the performance operator according to the notification from the performance instructing means. Then, the first performance information is supplied from the operated performance operator.
When the operator operates the performance operator as informed by the performance instructing means, the first performance information and the second performance information match. However, if the operator performs an operation different from the notification from the performance instruction means, that is, an erroneous operation, the first performance information and the second performance information do not match at that point. Therefore, the control means determines that the operator has made an erroneous operation when the determination results by the comparison determination means do not match,
The supply of the second performance information is repeated from the erroneously operated portion to the predetermined section. As a result, the performance instructing means informs the performance operator to be operated according to the second performance information that is repeatedly supplied, so that the operator focuses on the erroneous part of the performance operation according to the notification. You will be able to practice.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electronic musical instrument having a built-in automatic performance function will be described below as an example of an electronic musical instrument having a performance instruction function of the present invention. FIG. 2 is a block diagram showing a hardware configuration example of an electronic musical instrument with a key depression instruction function according to an embodiment of the present invention. This electronic musical instrument with a key depression instruction function has a light emitting diode (LED) and a liquid crystal display (LCD) near the upper side of each key of the keyboard, and the LED indicates which portion of the keyboard the fingers should be placed according to performance data. And a key to be pressed next and a key to be pressed next time are simultaneously displayed on the LED or LCD.

In this embodiment, the electronic musical instrument performs various processes under the control of a microcomputer including a microprocessor unit (CPU) 1, a program memory (ROM) 2 and a working memory (RAM) 3. Ready to run. The CPU 1 controls the operation of the entire electronic musical instrument. To the CPU 1, a program memory 2, a working memory 3, a performance information memory 4, via a data and address bus 18,
The key pressing detection circuit 5, the display circuit 6, the switch detection circuit 7, the interface 8, and the tone generator circuit 9 are connected.

The program memory 2 stores the system program of the CPU 1, various parameters and various data relating to musical tones, and is composed of a read only memory (ROM). Working memory 3
The CPU 1 temporarily stores various data and flags generated when the CPU 1 executes the program, and a predetermined address area of a random access memory (RAM) is allocated to each.

The performance information memory 4 stores the key-depression instruction data of the musical piece to be played by the performer and the musical performance data relating to the accompaniment tones (chords, bass tones and rhythm sounds) accompanying the musical piece. Each track is stored in multiple tracks. FIG. 3 is a diagram showing a configuration example of key depression instruction data and performance data stored in the performance information memory 4. The key depression instruction data is stored in the track of track number 0 (hereinafter referred to as “track 0”), and the performance data is stored in the tracks of track numbers “1” to “8” other than this. The key-depression instruction data of track 0 is written in the buffer as it is. The process of transferring the key depression instruction data to the buffer will be described later.

The key depression instruction data is composed of a combination of key data, duration data and an end code. The key data is composed of a key data code indicating that the next data is data related to key-on, a key code indicating a pitch of a key, and a gate time indicating a note length. The duration data is composed of a duration code indicating that the next data is data relating to the duration and a duration time indicating an event occurrence interval. The end code indicates the end of the key depression instruction data. In the electronic musical instrument of this embodiment, the built-in phrase dividing device inserts a phrase code between the duration time and the key-on code to automatically divide the key depression instruction data into desired phrase units. ing. The operation of this phrase dividing device will be described later.

The performance data is such as used in normal automatic accompaniment, and is composed of a combination of key data, duration data, end code and the like. The key data is composed of a key-on code indicating that the next data is data related to key-on, a key code indicating a pitch of a key, a velocity indicating a key pressing operation speed, and a gate time indicating a note length. The duration data is composed of a duration code indicating that the next data is data relating to the duration and a duration time indicating an event occurrence interval. The end code indicates the end of the key depression instruction data. In addition to this, the performance data includes tone color data and effect data.

The keyboard 11 is provided with a plurality of keys for selecting the pitch of a musical tone to be produced, has a key switch corresponding to each key, and if necessary, a key speed detecting device or the like. It has a touch detection means. The keyboard 11 is a basic operator for playing music, and it goes without saying that other keyboard operators may be used. The key depression detection circuit 5
The key switch circuit is provided corresponding to each key of the keyboard 11 for designating the pitch of the musical sound to be generated. The key-depression detection circuit 5 detects a change from the key-released state to the key-depressed state of the keyboard 11 and outputs a key-on event, and detects a change from the key-depressed state to the key-released state and outputs a key-off event. At the same time, a key code (note number) indicating the pitch of the key for each key-on event and key-off event is output. In addition to this, the key-depression detection circuit 5 detects a pressing force or the like when the key is depressed and outputs it as after-touch data.

The display unit 12 is composed of a plurality of light emitting diodes (LED group) and a liquid crystal display (LCD) provided adjacently on the upper side of the keyboard 11. In this embodiment, the display unit 12 is composed of LEDs that emit at least one color. The display circuit 6 causes an LED to emit light in accordance with key depression instruction data stored in the performance information memory 4,
It is used to display a predetermined graphic symbol on the LCD. In this embodiment, the display circuit 6 is adapted to turn on or off the LED for the key to be pressed at present.

The switch detection circuit 7 is provided corresponding to various switch groups 13 and outputs operation data corresponding to the operation status of each switch group as event information. The switch group 13 includes a load switch for controlling the reading of data from the disk 14, a start / stop switch for controlling the start / stop of the automatic performance and the key depression instruction, the tone color and volume of the musical tone to be generated,
It includes various operators for selecting, setting, and controlling pitches, effects, and the like. The disk 14 is a storage medium such as a floppy disk, and stores various performance data and key depression instruction data corresponding to the performance music.
The interface 8 converts the performance data and the key depression instruction data stored in the disk 14 into data that can be processed in the microcomputer.

The tone generator circuit 9 is capable of simultaneously generating musical tone signals on a plurality of channels.
A tone signal based on the performance data given via 8 is generated. Any tone signal generation method in the tone generator circuit 9 may be used. For example, a memory reading method for sequentially reading tone waveform sample value data stored in a waveform memory according to address data that changes corresponding to the pitch of a tone to be generated, or a predetermined frequency using the above address data as phase angle parameter data. A well-known method such as an FM method for performing a modulation operation to obtain musical tone waveform sample value data or an AM method for performing a predetermined amplitude modulation operation using the address data as phase angle parameter data to obtain a tone waveform sample value data. You may employ suitably.

The tone signal generated from the tone generator circuit 9 is sounded through a digital-analog converter (DAC) 15 and a sound system 16 (consisting of an amplifier and a speaker). The timer 17 counts time intervals and generates clock pulses for reading performance data and key depression instruction data from the performance information memory 4, and the frequency of this clock pulse is the tempo switch on the switch group 13 (see FIG. (Not shown) etc. The generated clock pulse is given to the CPU 1 as an interrupt command, and the CPU 1 executes an interrupt process according to this clock pulse to generate a musical tone or give a key depression instruction. It

Next, an example of processing of the electronic musical instrument of FIG. 2 executed by the microcomputer will be described. FIG.
FIG. 7 is a diagram showing an example of a main routine processed by a microcomputer. This main routine is sequentially executed in the following steps.

Step 41: First, when the power is turned on, the CPU 1 starts the initialization process according to the control program stored in the program memory 2. Then, in this "initial setting process", various registers and flags in the working memory 3 are set to initial values. Step 42: The key press detection circuit 5 is scanned and the keyboard 11 is pressed.
It is determined whether or not there is a key event by the operation of. If the key event is present (YES), the process proceeds to the next step 43, and if the key event is not present (NO), the step 44 is performed.
Jump to.

Step 43: Since it is determined in the previous step 42 that there is a key event, the key event processing of FIG. 5 corresponding to the key event is performed. FIG. 5 is a diagram showing details of this key event processing. This key event process is sequentially executed in the following steps. Step 51: It is determined whether or not the key event is the key-on event. If the key-on event (YES), the process proceeds to step 52, and if not, the key-off event (NO).
In the case of, the process proceeds to step 53. Step 52: Since the key-on event was determined in the previous step 51, the key code is stored in the performance key code register PKC, and the clock register CLK is set to "0".
Reset to. Step 53: Since the key-off event is determined in the previous step, the key-off process corresponding to it is performed, and the process proceeds to step 44 in FIG. Step 54: Since the key-on event is determined in the previous step, the key-on processing corresponding to it is performed.

Step 55: The running state flag RUN is "1" and the waiting state (waiting state flag WAI
It is determined whether T is "1"). If YES, the process proceeds to the next step 56, and if NO, the process proceeds to step 44 of FIG. Step 56: It is judged whether or not the key code of the key data stored at the head of the buffer and the key code stored in the performance key code register PKC match. If they match (YES), the process proceeds to step 57, where If not (NO), the process proceeds to step 44 in FIG.

Step 57: It is determined in the previous step 55 that the key code at the head of the buffer is coincident with the key code pressed in the previous step 56, and the fact that it is determined that the key code is pressed corresponds to the pressing by the LED emission. Key instruction or LE
This means that, after the key depression instruction by the D emission and tone generation is performed, the correct key depression that matches the key depression instruction is performed. Therefore, the LED corresponding to the key code stored in the performance key code register PKC. Turn off. When the key data of the same key code exists in the buffer, it keeps lighting. Step 58: Clear the performance key code register PKC. Step 59: The waiting state flag WAIT is set to "0" to cancel the waiting state, and the routine proceeds to step 44 in FIG.

Step 44: The switch group 13 is scanned, and it is judged whether or not there is an on event of the load switch (not shown) in the switch group 13, and there is an on event (YES).
In case of, proceed to the next step 45, otherwise (NO)
If so, jump to step 47. Step 45: Since it is determined in the previous step 44 that there is an on-event of the load switch, here, the key depression instruction data and performance data as shown in FIG. .

Step 46: Phrase division processing for dividing the key depression instruction data read in the previous step 45 into predetermined phrases is performed. Details of this phrase division processing will be described later. Step 47: The switch group 13 is scanned, and it is judged whether or not there is an on event of a mode changeover switch (not shown) in the switch group 13. If there is an on event (YES), the process proceeds to the next step 48, otherwise (NO). If so, jump to step 49. Step 48: Since it was determined in the previous step 47 that an ON event of the guide mode changeover switch has occurred, the value of the guide mode register GMOD is alternately switched between "0" and "1" here. That is, before the processing of this step, the value of the guide mode register GMOD is switched to "1" when it is "0" and to "0" when it is "1". When the guide mode register GMOD is "0", it means that the key depression instruction is made by both the LED light emission and the tone generation. When the guide mode register GMOD is "1", the key depression instruction is made only by the LED light emission. Means to do. In this embodiment, even if the guide mode register GMOD is "1", after the erroneous key depression occurs, the key depression instruction is given by both LED light emission and tone generation.

Step 49: Scan the switch group 13 and start / stop switch (not shown) in it.
If there is an on event (YES), the process proceeds to the next step 4B, and if there is no on event (NO), the process jumps to step 4E. Step 4A: The running state flag RUN is reversed. That is, in this embodiment, the automatic performance is started or stopped each time the start / stop switch is operated. Step 4B: It is determined whether or not the traveling state flag RUN is "1". If "1" (YES), the process proceeds to step 4D, and if not (NO), the process proceeds to step 4C. Step 4C: Running state flag RUN in the previous step 4B
Is "0", that is, it is determined that the automatic performance is stopped, so the automatic performance is stopped here.

Step 4D: Since it is determined that the running state flag RUN is "1", the automatic performance start process as shown in FIG. 6 is performed here. Figure 6 shows this step 4D
It is a figure which shows the detail of the automatic performance start process of. This automatic performance start processing is sequentially processed in the following steps. Step 61: Since the start / stop switch has been operated and the running state flag RUN has been inverted to "1", the read pointers of all tracks (track 0 to track 8) are set to the corresponding key depression instruction data of the performance information memory 4. And the start address of the performance data storage area.

Step 62: The tone color of the track number L read from the header of the performance information memory 4 is written in the tone color register TC (L). Tone register TC
(L) stores the tone color name of each track. The track number L is a value of "0" to "8" that specifies the reproduction track of the performance information memory 4. Step 63: The waiting state flag WAIT is set to "0" to cancel the waiting state. Step 64: Reset the duration time register DL to "0". Step 65: Clear the data in the buffer and return to step 4E in FIG. Step 4E: Various processes such as a process based on the operation of other operators in the switch group 13 and other volume changing processes are performed.

FIG. 7 is a diagram showing details of the phrase division process in step 46 of FIG. This phrase division process is
This is a process for dividing the key-depression instruction data read from the disk 14 and written in the performance information memory 4 in step 45 of FIG. 4 into phrase units. This phrase division processing is sequentially processed in the following steps. Step 71: Threshold the value obtained by multiplying the average value of the duration time of track 0, that is, the total value of all the duration times forming the key depression instruction data by the total number of the duration codes, by a predetermined coefficient. The value is stored in the threshold value register THRSH. Step 72: The read pointer of track 0 is set to the head address of the storage area of the performance information memory 4.

Step 73: Reset the duration time register DTM, the maximum gate time register GTM and the key-off timing register KOFF to "0". The duration time register DTM is a register for storing the duration time in the key depression instruction data. The maximum gate time register GTM is a register for storing the maximum gate time in the key depression instruction data. The key-off timing register KOFF is a register for measuring the time of the gate-off state. Step 74: It is judged whether the value of the duration time register DTM is "0" or less, and "0" or less (YE
If S), the process proceeds to the next step 75, and if larger than "0" (NO), the process proceeds to step 7E.

Step 75: The fact that the value of the duration time register DTM is judged to be "0" or less in the previous step 74 means that it is the read timing of the next key depression instruction data. Then, the key depression instruction data pointed to by the read pointer of track 0 is read. Step 76: Track 0 for next data read
The read pointer of is set to the read address of the next key depression instruction data. For example, if the data read in step 75 is key data, the pointer is advanced by 4, and if it is duration data, the pointer is advanced by 2. Step 77: It is judged whether the data read in the previous step 75 is end data, and the end data (YE
In the case of S), the process proceeds to step 7F, and in the case of other data (NO), the process proceeds to step 78. Step 78: It is determined whether or not the data read in the previous step 75 is duration data, and if it is duration data (YES), the process proceeds to step 7D,
For other data (NO), the process proceeds to step 79.

Step 79: It is determined whether or not the data read in the previous step 75 is key data. If the data is key data (YES), the process proceeds to step 7A, and if it is other data (NO), step 74. Return to. Step 7A: Since the key data is determined in the previous step 79, the gate time in the key data is stored in the latest gate time register GT. Step 7B: It is judged whether the value of the latest gate time register GT is larger than the value of the maximum gate time register GTM. If it is larger (YES), the process proceeds to the next step 7C, and if it is smaller (NO), the process returns to step 74. . Step 7C: Since it was determined in the previous step 7B that the value of the latest gate time register GT is larger than the value of the maximum gate time register GTM, the value of the maximum gate time register GTM is replaced with the value of the latest gate time register GT. Step 7D: Since it is determined to be duration data in the previous step 78, the duration time is stored in the duration time register DTM.

Step 7E: Since it is determined in the previous step 74 that the value of the duration time register DTM is larger than "0", the key-off division processing as shown in FIG. 8 is performed here. FIG. 8 is a diagram showing details of the key-off division processing in step 7E. This key-off division process is sequentially executed in the following steps. Step 81: Since it is determined in the previous step 74 that the value of the duration time register DTM is larger than “0”, the duration time register DT is set here.
The stored values of M and the maximum gate time register GTM are decremented by "1", and step 82
Proceed to.

Step 82: It is judged whether or not the value of the maximum gate time register GTM is smaller than "0",
If it is smaller than "0" (YES), the next step 83
If it is "0" or more (NO), proceed to step 7 of FIG.
Return to 4. That is, the decrement process of step 81 is performed by the duration time register DTM.
Value becomes "0" or less, YES in step 74 of FIG.
Or the maximum gate time register GTM
Is repeated and the determination is YES in step 82, the process is repeated.

Step 83: Since the value of the maximum gate time register GTM has become a negative value in the previous step 82, the value of the key-off timing register KOFF is incremented by "1" to increase the time. Step 84: It is judged by the increment processing of the previous step 83 whether the value of the key-off timing register KOFF is larger than the threshold value of the threshold value register THRSH. If NO, the process returns to step 74 of FIG. That is, the key-off timing register KOFF is
By the increment processing of this step 83, the duration time register DTM is larger than "0" and the maximum gate time register has a negative value, that is, the key-off state time.

Step 85: It is judged whether or not the key depression instructing data pointed to by the read pointer of track 0 is end data, and if it is end data (YES), the process returns to step 74 of FIG. 7 and other data (NO). In the case of, the process proceeds to the next step 86. Step 86: It is judged whether or not immediately before the key depression instruction data pointed to by the read pointer of track 0 is the phrase data, and if it is the phrase data (YES), the process returns to step 74 of FIG. 7, and other data (NO) If so, proceed to the next step 87. That is, since it is determined in the previous step 84 that the value of the key-off timing register KOFF is larger than the threshold value of the threshold value register THRSH,
Ordinarily, the phrase data should be inserted just before the data pointed to by the pointer. If the data pointed to by the pointer is end data, or if the data immediately before the data pointed by the pointer is phrase data, then the phrase data is inserted. However, since it is meaningless, a determination for eliminating such a state is made in advance in step 85 and step 86.

Step 87: It is judged whether or not there are two or more kinds of key codes of the key data from the immediately preceding phrase data (the head of track 0 if there is no phrase data) to the position immediately before the data pointed to by the pointer of the track corresponding to track 0. However, if there are two or more types (YES), the next step 8
8. If not (NO), go to step 7 in FIG.
Return to 4. Step 88: It is determined in step 84 that the value of the key-off timing register KOFF is larger than the threshold value of the threshold value register THRSH, and it is determined in step 85 that the data pointed to by the pointer is not end data, and immediately before the data pointed by the pointer. If is not phrase data, step 86
Since it is determined in step 87 that the number of types of the key code is two or more, the phrase data is inserted immediately before the key depression instruction data pointed to by the read pointer of track 0.

Step 89: The phrase divided by the series of key-off division processes described above is again subjected to phrase subdivision processing as shown in FIG. 9, and the process returns to step 74 of FIG. FIG. 9 is a diagram showing details of the phrase subdivision processing in step 89. This phrase subdivision processing is sequentially executed in the following steps. Step 91: When the number of types of the key code becomes 6, the phrase is delimited, and the phrase data is inserted immediately after the duration data immediately after the sixth type key data (the last one when there are a plurality of consecutive keys). .. However, at this time, when the number of types of key codes of the key data between the phrase data becomes less than three by inserting the phrase data, or the duration data between the key data falls below the threshold value of the threshold register THRSH. When it becomes, do not insert the phrase data.

Step 92: The lowest pitch key code and the highest pitch key code are stored, and when the difference between the two becomes greater than 16, the phrase is delimited, and the phrase immediately before the key data exceeding the range is phrased. Insert the data.
The lowest pitch key code and the highest pitch key code are set to the key code of the key data immediately after the phrase data and repeated. However, also at this time, as in the previous step, when the number of types of key code of the key data between phrase data becomes less than 3 by inserting the phrase data,
Alternatively, when the duration data between the key data becomes less than the threshold value of the threshold value register THRSH, the phrase data is not inserted.

Step 93: A phrase is delimited when the number of key data is 64, and the phrase data is inserted immediately after the duration data immediately after the 64th key data. Step 94: Since the phrase data is newly inserted by the step 88 of FIG. 7, the key-off timing register K
OFF is reset to "0", the process returns to step 74 of FIG. 7, and the processes of steps 74 to 7E of FIG. 7 are repeated until the end data is read. Step 7F: Since it is determined in step 77 that the read data is end data, the phrase subdivision processing of FIG. 9 as described above is performed here, and the process returns.

FIG. 10 is a diagram showing an interrupt process executed at a timing of 96 times per bar (every 96th note length). In this interrupt processing, key depression instruction processing and automatic accompaniment processing are mainly performed. This interrupt processing is sequentially executed in the following steps. Step 101: It is determined whether or not the traveling state flag RUN is "1", and if "1" (YES), then the next step 1
If not (NO), the process immediately returns and waits until the next interrupt timing.

Steps 102 to 105 are processing for clearing the contents of the performance key code register PKC every predetermined period (8th note length). Step 102: Since this interrupt processing is performed every 96th note length, when the value of the clock register CLK which is "0" becomes "11", the interrupt point corresponds to the eighth note length. It is determined whether the value of the clock register CLK is "11", and "11" (YE
If S), go to step 103, otherwise (N
O), the process proceeds to step 105. Step 103: It is determined in the previous step 102 that the value of the clock register CLK is “11”, which means that the clock register CL is processed by the process of step 52 of FIG.
Since it means that the time corresponding to the eighth note length has elapsed since the value of K was reset to "0", the contents of the performance key code register PKC are cleared here. Step 104: Reset the clock register CLK to "0" to measure the time corresponding to the eighth note length again. Step 105: It is determined in the previous step 102 that the value of the clock register CLK is not “11”,
Since it means that time has not yet elapsed corresponding to the eighth note length, here, the clock register CLK
Is incremented by "1".

Step 106: It is determined whether or not it is in the waiting state, that is, whether or not the waiting state flag WAIT is "1". If "1" (YES), the process jumps to step 108, and if "0" (NO) Proceeds to the next step 107. Step 107: The performance data stored in tracks 1 to 8 are sequentially read and reproduced. Since this playback process is performed by the normal automatic performance process,
Here, the description is omitted. That is, being in a waiting state means that no automatic accompaniment is performed.

Step 108: The key depression instruction data stored in the track 0 is sequentially read out, and the key depression instruction processing as shown in FIG. FIG. 11 is a diagram showing the details of the key depression instruction processing in step 108. This key depression instruction process is executed in order in the following steps. Step 111: It is determined whether or not it is in a waiting state (waiting state flag WAIT is "1"), and waiting state (YES)
In the case of, the process proceeds to step 11A, and it is not in the waiting state (N
O), the process proceeds to step 112.

Step 112: Since it is determined that the process is not in the waiting state in all steps 111, it is determined whether the value of the duration time register DL is "0" or less, and "0" is determined.
In the case of (YES) below, the process proceeds to step 113, and is "0".
If it is larger than (NO), the process proceeds to step 114. Step 113: Since it is determined in the previous step 112 that the value of the duration time register DL is equal to or less than "0", the key depression instruction data pointed to by the read pointer of track 0 is read here. Step 114: Since it is determined in the previous step 112 that the value of the duration time register DL is larger than "0", here, the duration time register D
The value of L is decremented by "1", and the process proceeds to step 109 in FIG. Step 115: It is judged whether the data read in the previous step 113 is end data, and the end data (Y
In the case of ES), the process proceeds to step 109 in FIG. 10, and in the case of other data (NO), the process proceeds to step 116.

Step 116: Set the read pointer of track 0 to the read address of the next data.
For example, if the data read in step 113 is key data, the pointer is advanced by 4, and if it is duration data, the pointer is advanced by 2. Step 117: It is determined whether or not the data read in the previous step 113 is duration data, and if it is duration data (YES), the process proceeds to step 118, and if it is other data (NO), step 11 is performed.
Proceed to 9. Step 118: Since it is determined in the previous step 117 that it is duration data, the duration time is stored in the duration time register DL, and the process proceeds to step 109 in FIG. 10.

Step 119: The key data reproduction process of FIG. 12 is performed on the key data read in the previous step 113. FIG. 12 is a diagram showing details of the key data reproducing process in step 119. The key data reproducing process is sequentially executed in the following steps. Step 121: The key code of the key data read in the previous step 113 is stored in the instruction key code register KC.
The gate time is stored in the instruction gate time register GGT, and the constant (small) is stored in the velocity register VL. The constant (small) stored in the velocity register VL is a value that determines a predetermined sound volume at the time of sounding a musical tone of a pitch corresponding to the designated key at the same time as the key depression instruction by the LED, and is heard by the operator. It is a small value that can be achieved.

Step 122: Whether the key code in the performance key code register PKC matches the key code in the instruction key code register KC, that is, the LED
It is judged whether the operator has pressed the key according to the key pressing instruction of
When they match (YES), the process proceeds to step 123, and when they do not match (NO), that is, when the key is erroneously pressed, the process proceeds to step 124. The erroneous key press here includes both the case where the operator presses a key different from the key instructed to be pressed and the case where the key is instructed to be pressed but the operator does not operate any key. Be done. Step 123: Since it is determined in the previous step 122 that the operator has depressed the key according to the key depression instruction of the LED, here,
The performance key code register PKC is cleared, and FIG.
And returns to step 111.

Step 124: Guide mode register G
Judge whether the value of MOD is "0", and then "0"
In the case of (YES), the process proceeds to the next step 125, and “1”
In the case of (NO), the process jumps to step 128.

Step 125: LE in the previous step 124
Since it is determined that it is a mode in which both the D key emission instruction and the musical tone generation key instruction are performed, in order to perform the tone generation processing based on the key depression instruction data, here, a channel capable of producing sound is assigned from the channels of the sound source, The channel number is stored in the channel register CH. Step 126: Based on the key data read from the performance data, the key-on signal, the key code in the instruction key code register KC, the velocity in the instruction velocity register VL, the tone color in the tone color register TC (0) and the channel number CH. Is output to the sound source circuit 9. Step 127: Gate time register GTT (CH)
The gate time in the instruction gate time register GGT is stored in, and the key code in the instruction key code register KC is stored in the key code register KCD (CH).

Step 128: The LED corresponding to the key code stored in the instruction key code register KC is turned on. When the corresponding LED is already turned on, the LED is blinked. That is, in this embodiment, from the occurrence of a wrong key press until the correct key press,
The LEDs corresponding to the key data in the phrase existing after the erroneous key depression is sequentially lit up and displayed. Then, even if all the lighting display of these key data is finished, the LED continues to light up. Therefore, after the second key depression instruction, the LEDs corresponding to the keys to be depressed are sequentially blinked. indicate. Step 129: The waiting state flag WAIT is set to "1" to set the waiting state. Therefore, after that, until the waiting state is released in step 59 of FIG. 5,
That is, until there is a correct key press, step 12C described later.
Thus, the key depression instruction is issued based on the key depression instruction data transferred in the buffer. Step 12A: Wait duration register WD
Set “11” to T. By doing this, step 1
In the repetitive reproduction process of 1A (FIG. 13), the actual operation is performed after about the eighth note length has elapsed.

Step 12B: Clear the data in the buffer. Step 12C: Read key data (corresponding to the key code stored in the instruction key code register KC) and subsequent key data (including read key data)
Then, all the sets of key data and duration data existing up to the phrase delimiter (phrase data) are transferred and stored in the buffer. Then, the end data is written at the end of the stored data, the buffer pointer is set to the address of the second key data from the head of the buffer, and the process returns to step 111 of FIG.

Step 11A: Since it is determined in the previous step 111 that the current state is the waiting state, the repetitive reproduction processing as shown in FIG. 13 corresponding to the data in the buffer is performed here. FIG. 13 is a diagram showing details of this repeated reproduction processing. This repetitive reproduction process is sequentially executed in the following steps. Step 131: Wait duration register WD
It is determined whether the value of T is "0" or less, and "0" or less (Y
If ES), the process proceeds to step 133, and if larger than "0" (NO), the process proceeds to step 132. Step 132: Since it is determined in the previous step 131 that the value of the weight duration register WDT is larger than "0", here, the value of the weight duration register WDT is decremented by "1", and then step 109 of FIG. Proceed to.

Step 133: Since it is determined in the previous step 131 that the value of the weight duration register WDT is "0" or less, the data is read from the read address indicated by the buffer pointer here. Step 134: It is determined whether the data read in the previous step 133 is end data, and end data (Y
In the case of ES), the process proceeds to step 135, and in the case of other data (NO), the process proceeds to step 136. Step 135: Since it was determined in the previous step 134 that the read data was end data, the buffer pointer is set to the head address of the buffer here in preparation for the next repeated reproduction processing. Step 136: Set the buffer pointer to the read address of the next data. That is, when the read data is key data, the pointer is advanced by four, and when it is duration data, the pointer is advanced by two.

Step 137: It is judged whether or not the read data is duration data. If it is duration data (YES), the process proceeds to step 138.
If the key data (NO), the process proceeds to step 139. Step 138: Since it was determined in the previous step 137 that the read data was duration data, the duration time is stored in the weight duration register WDT. Step 139: The key code of the read key data is stored in the designated key code register KC, the gate time is stored in the designated gate time register GGT, and the constant (small) is stored in the velocity register VL. The constant (small) stored in the velocity register VL is, as in the case of the processing of step 121, a predetermined sound volume at the same time when a key depression instruction is issued by the LED and a tone having a pitch corresponding to the instructed key is generated. It is a value to be determined, and is a small value that the operator can hear.

Step 13A: In order to perform sound generation processing based on the key data read from the buffer, a soundable channel is assigned from the sound source channels, and the channel number is assigned to the channel register CH.
To be stored. Step 13B: The key-on signal, the key code in the instruction key code register KC, the velocity in the instruction velocity register VL, the tone color in the tone color register TC (0) and the channel number in the channel register CH are used as the tone generator circuit 9
, And gives a key depression instruction by tone generation based on the key data read from the buffer. Step 13C: The LED corresponding to the key code stored in the instruction key code register KC is turned on. If the corresponding LED is already lit, the LE
Make D blink. As a result, the key depression instruction by the LED emission based on the key data read from the buffer is performed. Step 13D: Gate time register GTT (CH)
The gate time in the instruction gate time register GGT is stored in and the key code in the instruction key code register KC is stored in the key code register KCD (CH).
The process returns to step 133.

Step 109: Channel register CH
Set "0" to. Step 10A: Gate time register G corresponding to the channel number stored in the channel register CH
It is determined whether the value of GT (CH) is "0" or less,
If "0" or less (YES), proceed to step 10C,
If it is larger than "0" (NO), the process proceeds to step 10B. Step 10B: Since it is determined in the previous step 10A that the value of the gate time register GGT (CH) is larger than "0", here, the gate time register GGT is
The value of (CH) is decremented by "1" and the process proceeds to step 10F.

Step 10C: Channel register CH
It is determined whether or not the channel corresponding to the channel number stored in is currently in use for automatic performance. If it is in use (YES), the process proceeds to step 10D, and if it is not in use, the process proceeds to step 10F. Step 10D: The channel number and the key-off signal stored in the channel register CH are output to the tone generator circuit 9. As a result, the tone generator circuit 9 stops sounding the currently sounding channel. Step 10E: If the LED corresponding to the key code stored in the key code register KCD (CH) is blinking, turn on the LED. Step 10F: The value of the channel register CH is "1"
Only the increment process is performed, and the same process is repeated for the next channel. Step 10G: The value of the channel register CH is "1"
If it is “6” (YES), return and wait until the next interrupt timing,
If the value is other than "16" (NO), the same processing is repeated for all the channels, and the process returns to step 10A.

How the key depression instruction data is divided by the phrase division processing of FIG. 7 will be described. Here, a case will be described in which the key depression instruction data as shown in FIG. 14 corresponding to the score example of FIG. 1A is divided into phrases. In the key depression instruction data of FIG. 14, the key code is represented by alphanumeric characters (C4, E4, etc.) and key number (numerical data). For example, the key code "de (C
"4)" is the key number, "60", "Mi (E4)" is "6"
4 ”and“ So (G4) ”are“ 67 ”,“ Si (B3) ”is“ 59 ”, and“ Le (D4) ”is“ 62 ”.

In FIG. 7, a case has been described in which the threshold value is obtained by multiplying the average value of the duration times of the entire track 0, in which the key depression instruction data is stored, by a predetermined coefficient. For the sake of convenience, a case will be described in which the key depression instruction data is divided into units of two measures, a threshold value is set for each division, and phrase division is performed. That is, in step 71 of FIG. 7, the average value of the duration times for the two measures of FIG. 14 is obtained. Duration time is two "48", one "36",
Since there are two "24" and two "6", the average value is about 27 calculated from (48 x 2 + 36 + 24 x 2 + 6 x 2) / 7. When the predetermined coefficient in step 71 is "1/2", the threshold value is about 14. This value "14" is stored in the threshold register THRSH.

After steps 72 to 74, the processing of steps 75 and 76 is performed. In step 75, the key code "DO (C4: 60)" of the first key data in FIG. 14 is read, and in step 76, the pointer is set to the next duration data. Then, the processing of step 7A is performed through steps 77 to 79. In step 7A, the key data "DO (C
4:60) ”is stored in the latest gate time register GT. At this point, the maximum gate time register GTM is "0", so step 7C
Then, the value "34" of the latest gate time register GT is stored in the maximum gate time register GTM.

At this time, the value of the duration time register DTM is still "0", so that the processing of steps 75 and 76 is performed again after step 74. In step 75, the duration time "48" is read this time, and in step 76 the pointer is set to the next key data "mi (E4: 64)". Then, after the processing of steps 77 and 78, the processing of step 7D is performed. In step 7D, "48" is stored in the duration time register DTM.

This time, the duration time register DT
Since the value of M is "48", NO is determined in step 74, and the key-off division process of step 7E (FIG. 8) is performed. In step 81, the duration time register D
Both TM and the maximum gate time register GTM are decremented so that the duration time register DTM is "47" and the maximum gate time register GTM is "3".
3 ”. Therefore, thereafter, the decrement process of step 81 is repeated until the value of the maximum gate time register GTM becomes a negative value or the value of the duration time register DTM becomes 0 or less. As a result of decrement processing, the duration time register DT
When the value of M becomes "13" and the value of the maximum gate time register GTM becomes "-1", YES is determined in the step 82, and the key-off timing register KOFF is incremented in a step 83. At this time, the key-off timing register KOFF is "1".

The value of the threshold register THRSH is "1".
4 ”, so NO is determined in step 84 at this point. Therefore, thereafter, until the value of the duration time register DTM becomes 0 or less or the value of the key-off timing register KOFF becomes larger than the threshold value "14", the decrement process of step 81 and the increment of step 83 are performed. The process is repeated. Result of decrement processing, duration time register DTM
Value of "0" and the value of the key-off timing register KOFF become "14", YES is determined in step 74, and the process of step 75 is performed before YES is determined in step 84. In step 75
The second key data of 4, that is, "Mi (E4 = 64)"
Data is read. And step 7A
Then, the gate time of key data “Mi (E4 = 64)” is “1”.
7 ”is stored in the latest gate time register GT. Since the maximum gate time register GTM has a negative value at this point, the value "17" of the latest gate time register GT is stored in the maximum gate time register GTM by the processing of step 7C.

Since the value of the duration time register DTM is "0", the processing of step 75 and step 76 is performed through step 74. In step 75,
This time, the second duration time "24" is read. In step 76, the pointer is set to the third key data "SO (G4: 67)". Then, through the processing of step 77 and step 78, step 7D
Is processed. In step 7D, "24" is stored in the duration time register DTM. Since the value of the duration time register DTM is "24" and the value of the maximum gate time register GTM is "17", the decrement process of step 81 is repeatedly executed as described above, and the value of the maximum gate time register GTM becomes negative. After that, the decrement process of step 81 and step 83
The increment process of is repeatedly executed. And
Since the value of the duration time register DTM is "0" and the value of the key-off timing register KOFF is "7",
In step 74, it is determined to be YES, and in step 75, FIG.
The third key data of No. 4, namely "So (G4: 67)"
Data is read. After that, the fourth key data “Si (B3: 59)”, the fifth key data “Do (C4: 60)”, and the sixth key data “Re (D
4:62) ”, similar processing is repeatedly performed.

Then, this time, in step 75, 7 in FIG.
The data regarding the th key data, that is, "do (C4 = 60)" is read, and the gate time "17" of the key data "do (C4 = 60)" is stored in the latest gate time register GT in step 7A. . At this point,
Since the maximum gate time register GTM is a negative value, the latest gate time register GT is processed by the processing in step 7C.
The value "17" is stored in the maximum gate time register GTM. Since the value of the duration time register DTM is "0", the processing of step 75 and step 76 is performed through step 74. In step 75, the seventh duration time "48" is read this time. In step 76, the pointer is set to the eighth key data "Mi (E4: 64)". Then, after the processing of steps 77 and 78, the processing of step 7D is performed. In step 7D, "48" is stored in the duration time register DTM.

Since the value of the duration time register DTM is "48" and the value of the maximum gate time register GTM is "17", the decrement process of step 81 is repeatedly executed as described above. Then, after the value of the duration time register DTM becomes "30" and the value of the maximum gate time register GTM becomes "-1", the decrement process of step 81 and the increment process of step 83 are repeatedly executed. Then, as a result of the decrement processing, the value of the duration time register DTM is "16" and the value of the key-off timing register KOFF is "1".
5 ”, and YES is determined in step 84, and the processes of steps 85 to 89 are performed.

Since the data pointed to by the pointer is the eighth key data "Mi (E4: 64)", step 85 returns NO.
Is determined. Since the data immediately before the data pointed by the pointer is the seventh key data "DO (C4: 60)", it is also determined as NO in step 86. Since there are five types of key codes of the key data from the beginning of track 0 to immediately before the data pointed to by the current pointer, YES is determined in step 87. Therefore, by the process of step 88, the phrase data is inserted immediately before the eighth key data pointed by the pointer (immediately after the seventh key data) as shown in FIG. Then, the phrase subdivision processing of step 89 (FIG. 9) is performed. Note that phrase division is not performed by this subdivision processing, and the key-off clock register KOFF is set to "0" in step 94 in preparation for the next phrase insertion.
Is reset to. Then, the same processing as described above is repeatedly executed until the end data is read, and the phrase data is inserted. When the end data is read, YES is determined in step 77 and step 7
The phrase subdivision processing of F is performed on the key depression instruction data until the end data is read. In this way, in this embodiment, the key depression instruction data is read and divided into predetermined phrases. In this embodiment, optimum phrase division can be performed by setting the predetermined coefficient multiplied in step 71 to an appropriate value.

Next, how the electronic musical instrument having the key depression instructing function of FIG. 2 issues a key depression instruction will be described with reference to FIGS. 1 and 15. FIG. 1 is a diagram showing the concept of how the electronic musical instrument with a key depression instruction function according to the present invention operates. FIG. 1A is a diagram showing a musical score example corresponding to the key depression instruction data of FIG. FIG.
(B) is a diagram showing a flow of operations of the electronic musical instrument when the operator performs a correct performance operation corresponding to the key depression instruction data without erroneous key depression. 1 (C) to 1 (F) are time-series diagrams showing the flow of the operation of the electronic musical instrument when the operator presses a wrong key. Figure 1 shows the operation of the electronic musical instrument
The sequence changes from (C) to FIG. 1 (F). FIG. 15 is a diagram schematically showing an operation example of how the electronic musical instrument emits an LED to give a key depression instruction when the operator erroneously depresses a key. ) Shows the state of light emission corresponding to the flow of operation in chronological order. The light emitting state of the LED changes in the order of FIG. 15 (A) to FIG. 15 (U).
Further, in the figure, the LEDs that are emitting light are shown by black circles, the LEDs that are not emitting are shown by white circles, and the blinking LEDs are shown by stitch circles.

First, when the load switch is operated, the key depression instruction data as shown in FIG. 14 is read from the disk 14 and written in the performance information memory 4 in step 45 of FIG. Then, as described above, step 4 of FIG.
As a result of the phrase division process of FIG. 6 (FIG. 7), a phrase code is generated between the seventh key data “DO (C4: 60)” and the eighth key data “MI (E4: 64)” as shown in FIG. Is inserted. It is assumed that the value of the mode number register GMOD is set to either "0" or "1" in step 48 of FIG.

According to the musical score example of FIG.
4) ”,“ Mi (E4) ”,“ So (G4) ”,“ Si (B
3) ”,“ Do (C5) ”,“ Le (D4) ”,“ Do (C
4) ”, in that order. First, the operator operates the start / stop switch to set the running state flag RUN to "1" in step 4A of FIG. 4, and the automatic performance start process of step 4D (FIG. 6) is performed. By this automatic performance start processing, the waiting state is released and the duration time register DL is reset to "0". Then, Figure 1
As shown in (B), the key depression instruction by only the LED light emission and the automatic accompaniment by the performance data of the tracks 1 to 8, or the key depression instruction and the automatic accompaniment by both the LED light emission and the musical sound generation are sequentially performed.

First, at the first interrupt timing, step 101, step 102, step 10 in FIG.
5, after step 106, step 107 is processed. In step 107, the performance data of tracks 1 to 8 is read out and an automatic accompaniment is performed. Then, the key depression instruction processing of step 108 (FIG. 11) is performed. In this key depression instruction processing, step 113 is processed through step 111 and step 112. In step 113, the first key data pointed to by the read pointer of track 0 is read. Therefore, the key data reproducing process of step 119 (FIG. 12) is performed through steps 115 to 117.

In this key data reproduction processing, the first key code "DO (C4: 60)" is in the instruction key code register KC, the gate time "34" is in the gate time register GGT, and the predetermined constant (small) is the velocity. Register VL
Stored in each. At this point in time, no key has been pressed, so NO is determined in step 122, and a series of processing from step 124 to step 12C is performed. In this series of processing, step 124 to step 128
Then, the key depression instruction is issued only by the step LED light emission, or the key depression instruction is issued by both the LED light emission and the tone generation. In step 129, the waiting state is set. In step 12A, "11" is stored in the wait duration register WDT. 14 in steps 12B and 12C.
From the 1st to 7th key data immediately before the phrase code is stored in the buffer, the end data is written at the end of the buffer, and the buffer pointer is set to the 2nd key data "Mi (E4: 64)". . Then, when it returns to step 111, it is determined YES this time, and the repeated reproduction processing of step 11A is performed.

First step 1 of this repeated reproduction processing
In step 31, it is determined as NO, and after step 132, the process shown in FIG.
The processing from step 109 onward is performed. This is because "11" is stored in the weight duration register WDT in step 12A of FIG. Therefore, this weight duration register W
The operation waits until the operator presses a key for the time until the stored value of DT becomes "0", that is, the time corresponding to 12 times (8th note length) at the interrupt timing.

This wait duration register WD
If a correct key press is made during the waiting time corresponding to the stored value of T, the key event process of FIG. 5 stores the key code pressed in the performance key code register PKC and the clock register CLK. It is reset to "0". Then, through steps 55 and 56,
The processing from step 57 to step 59 is performed. However,
The LED being turned on is turned off by the process of step 57, the performance key code register PKC is cleared by the process of step 58, and the waiting state is released by the process of step 59.

On the other hand, when the waiting time corresponding to the value stored in the wait duration register WDT has elapsed, it is determined that the key has been erroneously pressed, and the same processing as that described below is executed. That is, YES in step 131.
Then, the processing from step 133 onward is performed, and the key depression instruction by both LED light emission and tone generation is performed based on the key depression instruction data in the buffer. The automatic accompaniment of step 107 is not performed during this key depression instruction.

Next, correct key depression is performed on the first and second key data in FIG. 14, and the operator selects the third key data "SO (G4: 6
The case where the key depression of "7)" is incorrect will be described. In this case, it is assumed that there is a correct key press within a predetermined time (waiting time corresponding to the stored value of the weight duration register WDT) after the key pressing instruction. That is, the LED is turned on as shown in FIG. 15A by performing the key pressing instruction processing as described above corresponding to the first key data. After that, the key corresponding to the lighted LED (the key corresponding to the first key data) is correctly pressed, so that the LED is turned off. Then, the key depression instruction processing is similarly performed corresponding to the second key data, so that the LED is turned on as shown in FIG. 15B.
After that, the key corresponding to the lighted LED (the key corresponding to the second key data) is correctly pressed, and the LED is turned off.

Then, the key depression instruction processing is performed corresponding to the third key data. However, a key depression instruction corresponding to the third key data (LED as shown in FIG. 15C is used).
When a key different from the key data is pressed before the key instruction by the light emission) is performed, a different key is pressed after the key pressing instruction is issued, or no key is pressed. In FIG. 1, the key depression instruction by both LED light emission and tone generation as shown in FIGS. 1C to 1E is performed based on the key depression instruction data in the buffer. That is, if the key is erroneously pressed before the key is pressed, the process of steps 124 to 12C of the key data reproduction process of FIG. 12 is performed after it is determined as NO in step 55 of FIG. Further, when the key is pressed by mistake after the key pressing instruction, after the processes of steps 124 to 12C of the key data reproducing process of FIG. 12 are performed, NO is determined in step 56 of FIG. 5 in response to the key pressing error. Is determined. As described above, regardless of whether the key is pressed by mistake before the key pressing instruction or by the key pressing after the key pressing instruction, the processing of steps 124 to 12C in FIG. 12 and step 52 in FIG. 5 corresponding to the key pressing are performed. Processing is performed.

Therefore, hereinafter, description will be given of the case where the key is pressed by mistake after the key pressing instruction. As described above, at the first interrupt timing after the correct key depression for the first and second key data, step 10 in FIG.
1, step 102, step 105, step 106
After that, step 107 is processed, and the performance data of tracks 1 to 8 is read and reproduced. Then, the key depression instruction processing of step 108 (FIG. 11) is performed. In this key-depression instructing process, the third key data pointed by the read pointer of track 0 is read in step 113 through step 111 and step 112. If NO in step 115, the read pointer of track 0 is set to the position of the next third duration code, and the key data reproducing process of step 119 (FIG. 12) is performed through step 117.

In this key data reproducing process, the third key code "SO (G4: 67)" is in the instruction key code register KC, the gate time "24" is in the gate time register GGT, and the predetermined constant (small) is the velocity. Register VL
Stored in each. At this point, the operator has not pressed the key yet, so the determination in step 122 is NO,
A series of processing from step 124 to step 12C is performed. By this series of processing, L as shown in FIG.
A key depression instruction by ED light emission or a key depression instruction by both LED light emission and tone generation is issued and set to a waiting state, "11" is stored in the wait duration register WDT, and the third to immediately preceding phrase code in FIG. Key data up to the seventh key is stored in the buffer. And
When the process returns to step 111, YES is determined, and the repeated reproduction process of step 11A is performed.

First step 1 of this repeated reproduction processing
In step 31, it is determined as NO, and after step 132, the process shown in FIG.
The processing from step 109 onward is performed. Then, until the stored value of the weight duration register WDT becomes "0", that is, before the time corresponding to 12 times (eighth note length) at the interrupt timing has passed, the operator makes a mistaken key depression (instruction). Press a different key) Then, by the key event processing of FIG.
The erroneously pressed key code is stored in the performance key code register PKC, and the clock register CLK is reset to "0". Then, after step 55, it is determined to be NO in step 56.

Then, at the next interrupt timing, as shown in FIG.
0 step 101, step 102, step 105
After that, it is determined as YES in Step 106, and the key depression instruction processing of Step 108 (FIG. 11) is performed. Therefore, after that, the automatic accompaniment of step 107 is not performed until the correct key is pressed. In this key-depression instructing process, the repeated reproduction process of step 11A through step 111 is performed. At the first step 131 of this repeated reproduction processing, NO is determined, and after step 132, the processing from step 109 onward in FIG. 10 is performed. Then, when the stored value of the weight duration register WDT becomes “0”, YES is determined in the step 131, the processes of the steps 133 to 13D are performed,
L is set for four key data from the fourth key data "Ci (B4: 59)" to the key data immediately before the phrase code (the seventh key data "D (C4: 60)").
The key depression instruction as shown in FIG. 1C is issued by both the ED light emission and the musical sound.

The key depression instruction of FIG. 1C is shown in FIG.
The order is as in (G). That is, FIG.
In (D), while keeping the lighting of the LED corresponding to the third key data “SO (G4: 67)”, the LED corresponding to the fourth key data “SI (B4: 59)” is newly lighted. . In FIG. 15 (E), the LED corresponding to the fifth key data “DO (C4: 60)” is newly lit while maintaining the lighting of the LEDs corresponding to the third and fourth key data. In FIG. 15 (F), the LED corresponding to the sixth key data “DO (D4: 62)” is newly lit while maintaining the lighting of the LEDs corresponding to the third, fourth and fifth key data. . The third in FIG. 15 (G),
While maintaining the lighting of the LEDs corresponding to the 4th and 6th key data, the 7th key data “DO (C4: 6
0) ”corresponding to the blinking LED. This is because the LED corresponding to the 7th key data has already been turned on at the time of FIG. 15 (E), and therefore blinks by the processing of step 13C.

If there is no correct key depression after this, the key data (the third key data "SO (G4: 67)") immediately before the key code (the key data immediately before the phrase code) 7th key data "Do (C4: 6
0) ''), the key depression instruction as shown in FIG. 1D is similarly given to the five key data. The key depression instruction of FIG. 1D is performed in the order as shown in FIGS. That is, in FIG. 15 (H), the LED corresponding to the third key data which is erroneously pressed is blinked while the lighting of the LEDs corresponding to the fourth to seventh key data is maintained. In FIG. 15 (I), the LED corresponding to the fourth key data is blinked while the lighting of the LEDs corresponding to the third and fifth to seventh key data is maintained. FIG.
In (J), while maintaining the lighting of the LEDs corresponding to the 3rd, 4th and 6th key data, the 5th (7th)
The LED corresponding to the key data of is blinked. FIG.
In (K), while keeping the lighting of the LEDs corresponding to the third to fifth and seventh key data, the LED corresponding to the sixth key data blinks. In FIG. 15L, the LEDs corresponding to the 7th (5th) key data are blinked while the lighting of the LEDs corresponding to the 3rd, 4th and 6th key data is maintained.

Until the correct key depression (normal key depression) occurs, the key depression instruction processing as shown in FIG. 1E is performed from the third key data "SO (G4: 67)". Key data at the time of occurrence (5th key data “(C4: 6
0) '') up to three key data. That is, the key depression instruction of FIG. 1 (E) is shown in FIGS.
The order is as follows. LE of FIGS. 15 (M) to (O)
The D lighting / blinking process is the same as that shown in FIGS. When a normal key press occurs at the time as shown in FIG. 1 (E), the key event process of FIG. 5 is performed accordingly, and the key press instruction and accompaniment are erroneously pressed as shown in FIG. 1 (F). Same as before. That is, in the key event process of FIG. 5, the key code “SO (G4: 6
7) "is stored in the performance key code register PKC, and the clock register CLK is reset to" 0 ". Then, the key-on process corresponding to the key event is performed in step 54, and the processes of steps 57 to 59 are performed through steps 55 and 56. Step 5
At 7, the key data of the same key code does not exist in the buffer, so that LED is turned off, the performance key code register PKC is cleared at step 58, and the waiting state is released at step 59 to return. By this process L
The lighting state of the ED is as shown in FIG.

At the next interrupt timing, the running state flag RUN is "1", the clock register CLK is "0", and the waiting state is released. Therefore, steps 101 and 102 in FIG. After step 105 and step 106, step 107 is processed, the performance data of tracks 1 to 8 is read, and the accompaniment is started. Then, the key depression instruction processing of step 108 (FIG. 11) is performed. In this key depression instruction processing, the fourth key data pointed to by the read pointer of track 0 is read out in step 113 through step 111 and step 112. Then, in step 115, NO is determined, the read pointer of track 0 is set to the position of the next fourth duration code, and step 11
After step 7, the key data reproducing process of step 119 (FIG. 12) is performed.

In this key data reproducing process, the fourth key code "SH (B3: 59)" is in the instruction key code register KC, the gate time "24" is in the gate time register GGT, and the predetermined constant (small) is the velocity. Register VL
Stored in each. At this point in time, no key has been pressed, so the determination in step 122 is NO, and a series of processing from step 124 to step 12C is performed. In step 128, the fourth key data "SH (B3: 5
9) ”corresponding to the blinking LED. This is because the LED corresponding to the 7th key data is already on. By this process, the lighting state of the LED is shown in FIG.
It becomes like (Q).

After that, the LEDs that are lit are shown in FIG.
While blinking like 5 (R) to (U) or extinguished,
A key depression instruction similar to that before the erroneous key depression is issued. That is, in FIG. 15 (R), the LED corresponding to the fourth key data is turned off, and the LED corresponding to the fifth key data is blinked while the lighting of the LED corresponding to the sixth key data is maintained. In FIG. 15 (S), the LED corresponding to the sixth key data is blinked while the lighting of the LED corresponding to the seventh key data is maintained.
In FIG. 15 (T), the LED corresponding to the sixth key data
Is turned off, and the LED corresponding to the 7th key data is blinked. In FIG. 15 (U), the LED corresponding to the seventh key data is turned off. If a wrong key is pressed again during this series of processing, the same processing is repeated.

In the above-described first embodiment, the case where the key depression instruction processing is performed based on the phrase code divided by the phrase division processing has been described. Next, as the second embodiment, the occurrence of erroneous key depression occurs. A case will be described in which similar processing is performed for the key data up to the fifth key data. In this case, the key event process of FIG. 5 may be modified as shown in FIG. 16, and the key data reproduction process of FIG. 12 may be modified as shown in FIG. That is, FIG.
6 is a diagram showing a modification of the key event process of FIG.
FIG. 17 is a diagram showing a modification of the key data reproducing process of FIG. The key event process of FIG. 16 differs from that of FIG. 5 in that steps 5A and 5B are newly provided between step 58 and step 59. In step 5A, the key data at the head of the buffer and the duration data immediately after it are deleted.
In step 5B, as a result of the deletion in the previous step 5A, it is determined whether or not the data left in the buffer is only end data. If YES, the process proceeds to step 59, and if NO, the process returns. The key data reproducing process of FIG. 17 is different from that of FIG. 12 in that step 1 of FIG.
The point is that the contents of 2C are changed as in step 12D. In step 12D, the five key data after the read key data and the duration immediately after that are set and stored in the buffer, the end data is written at the end of the buffer, and the buffer pointer is set at the head address of the buffer. .

By modifying as shown in FIGS. 16 and 17, the key depression instruction processing similar to that shown in FIG. 1 is repeatedly executed, but there is a correct key depression as shown in FIG. 1 (G). Even after that, the key depression instruction is given by the LED emission and the tone generation, and the accompaniment is not performed. Therefore, in FIG. 1, since the erroneous key depression occurs for the third key data, both of them similarly perform the key depression instruction processing for the third to seventh key data. When the key depression occurs with respect to the second key data, FIG. 16 and FIG.
According to the seventh embodiment, the key depression instruction processing is repeatedly executed for the second to sixth key data.
In the second embodiment of FIG. 17, a case has been described in which the number of key data to be read in order to repeat the key pressing instruction processing is five, but it is not limited to this, and it is needless to say that any number may be read.

In the method of coincidence progression in the above-described embodiment, even if the keys are not pressed in the order of the key-on of the sequencer, if the key-on continues at an interval of a fixed duration or less, it is judged that the keys are simultaneously pressed, and the keys are simultaneously pressed. In the key press, the key presses are considered to match if the key codes match, regardless of the sequence of sequencers, but this is not the only option. It goes without saying that you can leave it out. Further, in the case of the second embodiment of FIG. 17, the performance information may not be divided between the key data regarded as the simultaneous key depression, and may be divided so as to satisfy 5 pieces or less.

In the above-described embodiment, the case has been described in which the musical tone by the key depression instruction and the sound generation by the key depression of the operator are performed, but when the key depression is performed by the operator, the sound generation by the key depression is prioritized. Alternatively, the sound generation by the key depression instruction may be stopped. Further, in this case, after a certain time (for example, two quarter note lengths) elapses after the operator does not press any key, the key pressing instruction by sounding is again issued to the key data of the unpressed key. Good.

In the above embodiment, the case where the accompaniment part other than the key depression instruction is not repeatedly played has been described, but the present invention is not limited to this, and the accompaniment part may be repeatedly played. Also, in the above embodiment,
The case where the key pressing instruction is repeated for the key data after the erroneous key pressing has been described. However, the present invention is not limited to this. To the end) may be repeated. Further, it is possible to repeat from the key data several keys before the erroneously pressed key data to the end of the phrase. In the above-described embodiment, the case where the key depression instruction is given after waiting for a predetermined time (about 16th note length) after the occurrence of an erroneous key depression has been described. You may wait for a time in seconds.

In the above-described embodiment, the case where the LED is used to give the key depression instruction has been described, but the present invention is not limited to this.
It is also possible to instruct the key depression by using graphic symbols such as black-painted circles, white-painted circles and gray circles. Further, in the above-described embodiment, when the key depression instruction is issued, the LED corresponding to the key to be currently depressed is turned on or blinked. The lighting states of the LEDs corresponding to both the keys may be different.
For example, if the LED is lit in two or more colors,
The lighting brightness of may be different.

In the above-described embodiment, the electronic musical instrument having the display portion near the upper side of the keyboard has been described as an example, but an instrument having no display portion is provided with only such a display portion, and the above-described key depression is performed. You may make it give an instruction. Further, in the above-described embodiment, the key pressing instruction and the actual key pressing operate synchronously so that when the key pressing instruction is actually pressed, the key pressing instruction advances to the next key pressing instruction. Although the case has been described, the key pressing instruction and the actual key pressing may be performed independently of each other.

In the above-mentioned embodiments, the case where the LED is lit with one color has been described, but an LED capable of lighting with two or more colors may be used. In this case, LEDs of different colors may be turned on between the LED that is already turned on and the LED that should be pressed. Further, although the case where the LEDs are arranged in one row has been described, the LEDs may be arranged in two rows in the upper and lower rows. In this case, the lighting color may be different in the vertical direction. Also, the same LED is used for the white key and the black key,
Not limited to this, the lighting area of the LED may be different between the white key and the black key, or the lighting color may be different between the white key and the black key.

Further, in the above-described embodiment, the case where the threshold value is obtained by a predetermined calculation process of multiplying the average value of the duration time by a predetermined coefficient has been described, but the present invention is not limited to this, and the average value of the duration time is converted into a table. Then, the threshold value may be obtained, the absolute time may be directly set in the threshold value, or a predetermined number of beats may be set in the threshold value. At this time, when setting the absolute time to the threshold value, in order to make the value of the key-off timing register KOFF correspond to the absolute time, the key-off timing register KOFF is set.
The value obtained by multiplying the value of (60 / (TMP × 24)) with the threshold value may be compared. That is, FIG.
The determination formula in step 71 of KOFF * (60 / (TMP
X24))> THRSH. Where TMP
Is the performance speed of the musical composition, and is indicated by the number of times a quarter note is played per minute.

In the above-described embodiment, the case where the phrase subdivision processing is further performed after the predetermined keyoff division processing has been described, but this phrase subdivision processing may be omitted, or a phrase separate from the keyoff division processing may be omitted. You may make it perform only a subdivision process. Further, as the phrase subdivision processing of FIG. 9, the case where the processing of step 91 to step 93 is performed has been described, but the present invention is not limited to this, and these steps may be performed alone or may be performed in an appropriate combination. ..

[0098]

According to the present invention, it is possible to inform the player of a mistaken portion of a performance operation and to repeatedly practice that portion intensively.

[Brief description of drawings]

FIG. 1 is a diagram showing a concept of how an electronic musical instrument with a key depression instruction function according to the present invention operates.

FIG. 2 is a block diagram showing a hardware configuration example of an electronic musical instrument with a key depression instruction function according to an embodiment of the present invention.

3 is a diagram showing a configuration example of key depression instruction data and performance data stored in the performance information memory of FIG.

FIG. 4 is a diagram showing an example of a main routine processed by a microcomputer.

5 is a diagram showing details of a key event process of FIG.

FIG. 6 is a diagram showing details of the automatic performance start process of FIG.

FIG. 7 is a diagram showing details of the phrase division processing of FIG.

FIG. 8 is a diagram showing details of a key-off division process of FIG.

9 is a diagram showing details of the phrase subdivision processing of FIG.

FIG. 10 is a diagram showing an interrupt process executed at a timing of 96 times per bar (every 96th note length).

FIG. 11 is a diagram showing details of key depression instruction processing in FIG. 10;

FIG. 12 is a diagram showing details of the key data reproduction process of FIG. 11.

FIG. 13 is a diagram showing details of the repeated reproduction process of FIG. 11.

FIG. 14 is a diagram showing details of key depression instruction data corresponding to the musical score example of FIG. 1;

FIG. 15: The electronic musical instrument is LE when the operator presses the wrong key
FIG. 9 is a diagram schematically showing an operation example of how D is caused to emit light to issue a key depression instruction.

FIG. 16 is a diagram showing a modification of the key event process of FIG.

FIG. 17 is a diagram showing a modification of the key data reproducing process of FIG.

[Explanation of symbols]

1 ... CPU, 2 ... Program memory, 3 ... Working memory, 4 ... Performance information memory, 5 ... Key detection circuit, 6 ... Display circuit, 7 ... Switch detection circuit, 8 ... Interface, 9 ... Sound source circuit, 11 ... Keyboard , 12 ... Display, 13 ...
Switch group, 14 ... Disk, 15 ... Digital-analog converter, 16 ... Sound system, 17 ... Timer, 1
8 ... Data and address bus

Claims (9)

[Claims] 1. A plurality of performance operators for supplying first performance information according to a performance operation, performance information supply means for supplying prestored second performance information, and supply from the performance information supply means. Comparison determining means for comparing and determining the first performance information and the second performance information, and a performance instructing means for notifying the performance operator to be performance-operated corresponding to the second performance information. And when the comparison and determination means determines that the first and second performance information do not match, the supply of the second performance information from a portion determined to be inconsistent to a predetermined section is repeated. A performance instruction device comprising: a control unit for controlling. 2. The performance instructing means gives a notification by visually displaying a performance manipulator to be performance-operated corresponding to the second performance information.
Performance instruction device described in. 3. The performance instructing apparatus according to claim 1, wherein the performance instructing means gives a notification by producing a musical tone corresponding to the second performance information. 4. The performance instructing means visually identifies a performance operator to be operated in response to the second performance information when the second performance information is repeatedly supplied by the control means. The performance instructing device according to claim 1, wherein the performance instructing device is configured to notify the user by displaying a musical tone corresponding to the second performance information. 5. When the performance instructing means produces a musical tone corresponding to the second performance information, the volume of the musical tone is produced lower than a normal volume. The performance instruction device according to any one of 1. 6. The performance instruction apparatus according to claim 1, wherein when the control means repeatedly supplies the second performance information, the performance of another part in the predetermined section is temporarily stopped. . 7. The performance instruction apparatus according to claim 1, wherein the predetermined section is from a portion determined as the non-coincidence to an end of a phrase divided in advance. 8. The predetermined section is a predetermined number of notes from a portion determined as the non-coincidence.
Performance instruction device described in. 9. The performance instructing apparatus according to claim 1, wherein the control means repeats the supply of the second performance information after a lapse of a predetermined time after it is determined that they do not match.