JPH08160948A - Electronic musical instrument with playing operation instruction function - Google Patents

Abstract

PURPOSE: To distinctively instruct the timing wherein a playing operation element should be operated. CONSTITUTION: The playing operation element consists of plural operation elements required for a musical performance. For example, a keyboard musical instrument consists of plural keys required for a musical performance. A playing information supply means supplies playing information corresponding to music. A sound generating means generates a rhythm sound having no interval feeling in the timing wherein playing operation elements should be operated on the basis of the playing information supplied in order from the playing information supply means. The rhythm sound is a mechanical sound prescribed with the strength and length of a sound like a metronome sound and a click sound. Therefore, even when a player presses keys to generate the rhythm sound and a key-pressed sound at a time, both the sounds are hard to musically interfere with each other, so the player can clearly discriminate his key-pressed sound from the rhythm sound and easily and securely understand the timing of key depression.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument having a performance operation instructing function, which has a function of displaying the placement of fingers and the position and order of operators to be operated on the player as an aid when playing an electronic musical instrument.

[0002]

2. Description of the Related Art Conventionally, as an electronic musical instrument having a performance operation instruction function having a function of instructing a performer to operate a music player as an aid when playing an electronic musical instrument, a light emitting diode is provided near the upper side of each key of a keyboard. There is one that has an (LED) and indicates the key to be pressed by sequentially emitting light corresponding to the key to be pressed according to the performance information. Among such electronic musical instruments with a key depression instruction function, only the LED corresponding to the key to be currently depressed is lit and displayed, or the LED corresponding to the key to be currently depressed and the key to be next depressed. There is a device that simultaneously displays LEDs corresponding to. Further, among such electronic musical instruments with a key-depression instructing function, there is also one that instructs the player to depress the key by producing a sound corresponding to the key to be depressed at the timing at which the key should be depressed.

[0003]

However, the LED display corresponding to the key to be pressed allows the player to easily recognize the position of the key to be pressed. LED is LED because it is visually recognized
There is a problem that it is difficult to recognize the key depression timing from the light emission timing. On the other hand, a note that produces a sound corresponding to a key to be pressed at the timing at which the key should be pressed allows the performer to easily recognize the key press timing, but the performer does not press the key. If the key is pressed, the sound indicating the key press timing and the sound based on the key press will be sounded in duplicate, and if the key press is concentrated such as a tuplet, the performer will instead press the key. There is a problem that it is difficult to recognize the timing.

The present invention has been made in view of the above points, and an object of the present invention is to provide an electronic musical instrument with a performance operation instruction function capable of instructing the timing at which a performance operator should be operated in an easy-to-understand manner. .

[0005]

An electronic musical instrument with a performance operation instructing function according to the present invention is provided with a plurality of performance operators, performance information supply means for supplying performance information, and sequentially supplied from the performance information supply means. And a sounding means for producing a rhythm sound having no sense of pitch at a timing at which the performance operator should be operated based on performance information.

[0006]

The operation operator is composed of a plurality of operators required for performance. For example, a keyboard instrument is composed of a plurality of keys necessary for playing. The performance information supply means supplies performance information according to the music. According to the present invention, the sound producing means produces a rhythm sound having no sense of pitch at the timing at which the performance operator should be operated based on the performance information sequentially supplied from the performance information supplying means. Therefore, when the performer presses the key, the rhythm sound and the sound based on the key press are duplicated, but the rhythm sound is a sound with no sense of pitch, such as metronome sound or click sound. It is a mechanical sound such as sound that is defined only by the strength and duration of the sound, and it is difficult for the key press sound to interfere musically. The distinction can be made clearly, and it becomes possible to easily and surely understand the timing at which the key should be pressed.

[0007]

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

In this embodiment, the electronic keyboard 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 keyboard instrument. This CPU
1, a program memory 2, a working memory 3, a performance information memory 4, a key pressing detection circuit 5, a display circuit 6, a switch detection circuit 7, an interface 8 and a tone generator circuit 9 are connected via a data and address bus 18. ing.

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 is C
The PU1 temporarily stores various data and flags generated when the program is executed, and a predetermined address area of a random access memory (RAM) is allocated to each.

The performance information memory 4 stores performance data relating to a musical piece to be played by the performer and performance data relating to accompaniment tones (chords and bass tones) accompanying the musical performance piece in a plurality of tracks for each musical piece. are doing. In this embodiment, the number of tracks is nine, and two of them store performance data regarding right-hand and left-hand key depression. The performance data is like that used in normal automatic accompaniment, and is composed of key-on data, duration data, tone color data, effect data, etc., and the performance data related to key depression is in addition to the LED related to the LED lighting display. It is configured to include lighting data and LED blinking data.

The keyboard 11 is provided with a plurality of keys for selecting the pitch of a musical tone to be generated, has a key switch corresponding to each key, and if necessary, a pressing force 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 includes a key switch circuit provided corresponding to each key of the keyboard 11 that specifies the pitch of a musical tone 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. 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 the key-depression operation speed and the pressure when the key is depressed, and outputs velocity data and 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. The display circuit 6 displays L according to the performance data stored in the performance information memory 4.
The ED is caused to emit light and a predetermined graphic symbol is displayed on the LCD.

The switch detection circuit 7 includes various switch groups 1
It is provided in correspondence with No. 3 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 and a start / stop for controlling the start / stop of the automatic performance and the key depression instruction.
It includes a stop switch and various operators for selecting, setting, and controlling the tone color, volume, pitch, effect, etc. of a musical tone to be generated.

The disk 14 is a storage medium such as a floppy disk and stores various performance data corresponding to a performance song. The interface 8 converts the performance 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, and has a data and address bus 18
A musical tone signal is generated based on the performance data given via. 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 (which is composed of an amplifier and a speaker). The timer 17 counts time intervals and generates clock pulses for reading performance data from the performance information memory 4. The frequency of this clock pulse is a tempo switch (not shown) on the switch group 13 or the like. Adjusted by The generated clock pulse is given to the CPU 1 as an interrupt instruction,
The CPU 1 executes interrupt processing according to this clock pulse to generate a musical sound or give a key depression instruction.

FIG. 3 is a diagram showing an example of the structure of performance data for one track (track number TR = 0) stored in the performance information memory 4. Track number TR = 0 is a track that stores performance data relating to right-hand key depression, and track number TR = 1 is a track that stores performance data relating to left-hand key depression. Other track numbers TR = 2 to 8 are tracks storing various performance data relating to accompaniment tones (chords and bass tones).

The performance data is composed of a combination of LED lighting data, LED blinking data, key-on data, duration data and end code. The LED lighting data is composed of an LED lighting code indicating that the subsequent data is data related to the lighting of the LED and a key code indicating the position of the LED to be lit. LE
The D blinking data is composed of an LED blinking code indicating that the data thereafter is data relating to blinking of the LED, and a key code indicating the position of the blinking LED.
The key-on 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.

Next, an example of processing of the electronic keyboard instrument of FIG. 2 executed by the microcomputer will be described. FIG. 4 is a diagram showing an example of a main routine processed by the 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 47 is performed.
Jump to.

The processing of steps 43 to 45 is performed every time a key event corresponding to the operation of the keyboard 11 occurs. Step 43: It is determined whether the key event is a key-on event, and if it is a key-on event (YES), the process proceeds to step 45, and if not, a key-off event (NO).
In the case of, the process proceeds to step 44. Step 44: Since the key-off event is determined in the previous step, the muffling process corresponding thereto is performed, and Step 4
Proceed to 7. Step 45: Since it is determined in the previous step 43 that the event is a key-on event, a sounding process corresponding to the event is performed. Step 46: Key depression instruction (LED lighting in this embodiment)
Comparison progress processing is performed to control whether or not the performance processing is to be performed while performing a comparison determination as to whether or not all of the played keys have been pressed, and the routine proceeds to step 47.

FIG. 5 is a diagram showing the details of the comparison / progress process in step 46. This comparison progress processing is sequentially executed in the following steps. Step 51: It is judged whether or not it is in a waiting state. That is, it is determined whether or not the wait state flag WAIT is "1". If "1" (YES), the process proceeds to the next step 52, and if not (NO), the process returns and proceeds to step 47 of FIG. Here, the wait state flag WAIT is
When new key-on data is registered in the sounding key code list in the interrupt process described later, it is set to "1" in step 104 of FIG. 1, so that it is judged YES in this step 51. , Means that new key-on data is additionally registered in the pronunciation key code list.

Step 52: It is judged whether or not all the key codes registered in the tone generation key code list have been pressed, and if all the key codes have been pressed (YES), the process proceeds to the next step 53 and subsequent steps to press all the keys. If not (NO), the process returns and proceeds to step 47 in FIG. Step 53: Since it is determined in the previous step 52 that all the key codes registered in the sound generation key code list have been pressed, the LED corresponding to the key code in the sound generation key code list is turned off here. This is the L corresponding to the key code registered in the pronunciation key code list.
This is because the ED is turned on in step 95 of the data processing in FIG.

Step 54: The wait state flag WAIT is set to "0" to cancel the wait state. By canceling this waiting state, the interrupt processing after step 73 in FIG. 7 is executed. Step 55: Clear the pronunciation key code list. That is, all key codes registered in the phonetic key code are erased, and the process proceeds to step 47 in FIG. Since this comparison progress processing is also executed in step 74 of FIG. 7, when NO is determined in step 51 or step 52,
If the process of step 55 is completed, the process proceeds to step 75 of FIG.

Step 47: The switch group 13 is scanned, and it is judged whether or not there is an on event of the load switch (not shown) therein, and there is an on event (YES).
If it is, proceed 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 load switch has occurred, here, the performance data as shown in FIG.
It is written in the performance information memory 4.

Step 49: The switch group 13 is scanned, and the performance processing mode changeover switch (not shown) in the switch group 13 is scanned.
If there is an on event (YES), the process proceeds to the next step 4A. If not (NO), the process jumps to step 4B. Step 4A: Since it was determined in the previous step 49 that the on event of the performance processing mode changeover switch has occurred, the value of the mode number register MOD is set to "0",
It switches in the order of "1", "2", "3", "4". That is, before this step, if the value of the mode register MOD is "0", it is "1", if it is "2", it is "3",
If it is "3", it is switched to "4", and if it is "4", it is switched to "0".

The mode number register MOD indicates the performance processing mode of the electronic musical instrument. The mode number register MOD = "0" is a normal automatic performance mode in which no key depression instruction is given. Mode number register MOD =
“1” is a key-depression tone generation instruction mode in which the LED is used to indicate the key-depression position and a tone corresponding to the key to be depressed is generated at the timing at which the key should be depressed. Mode number register MOD =
“2” is a rhythm sound instructing mode in which the LED is used to indicate the key pressing position and a rhythm sound (for example, a metronome sound) that does not have a pitch feeling is generated at the timing when the key should be pressed. The mode number register MOD = “3” indicates the key pressing position with the LED, and at the same time, the key pressing sound generation instruction & sound for producing a sound corresponding to the key to be pressed and a rhythm sound with no sense of pitch at the timing to press the key & Rhythm sound pronunciation instruction mode.
The mode number register MOD = “4” is an LED key pressing instruction mode in which the key pressing position is instructed only by the LED without issuing the key pressing instruction to generate the key pressing sound or the rhythm sound at the timing when the key should be pressed.

Step 4B: The switch group 13 is scanned, and the start / stop switch (not shown) therein is scanned.
It is determined whether or not an on-event has occurred due to the above operation. If there is an on-event (YES), the process proceeds to the next step 4C, and if there is no on-event (NO), the process jumps to step 4G.

Step 4C: The running state flag RUN is reversed. That is, in this embodiment, each time the start / stop switch is operated, the mode number register MO
The automatic performance corresponding to the stored value of D is started or stopped. The running state flag RUN indicates the state of automatic performance, "0" indicates that it is stopped, and "1".
Indicates that the automatic performance is being performed. Step 4D: It is determined whether or not the traveling state flag RUN is "1", and if "1" (YES), the next step 4F
If not (NO), go to step 4E. Step 4E: Running state flag RUN in the previous step 4D
Is "0", that is, it is determined that the automatic performance is stopped, so the automatic performance is stopped here.

Step 4F: Since it is determined that the traveling state flag RUN is "1", the automatic performance start process as shown in FIG. 6 is performed here. 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 are set to the performance information memory 4
Are set to the start addresses of the corresponding storage areas. Step 62: The waiting state flag WAIT is set to "0" to cancel the waiting state. By canceling this waiting state, the interrupt processing after step 73 in FIG. 7 is executed. Step 63: The timing counter TM (L) corresponding to each track number L = 0 to 8 is reset to “0”. The timing counter TM (L) is a counter for timing automatic performance and key depression instructions (LED lighting instruction, key depression sound pronunciation instruction, rhythm sound pronunciation instruction), and is present for each track. The track number L is a value of "0" to "8" that specifies the reproduction track of the performance information memory 4. Track number L = 0 is a track that stores performance data relating to right-hand key depression, and track number L = 1 is a track that stores performance data relating to left-hand key depression. Other track numbers L = 2 to 8 are tracks in which performance data regarding accompaniment tones (chords and bass tones) are stored. Step 64: Clear the pronunciation key code list, and then click FIG.
Return to step 4G. Step 4G: Various processes such as a process based on the operation of another operator in the switch group 13 and other volume changing process are performed.

FIG. 7 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 performed. This interrupt processing is sequentially executed in the following steps. Step 71: It is determined whether or not the traveling state flag RUN is "1", and if "1" (YES), the next step 72
If not (NO), the process immediately returns. Step 72: It is determined whether or not the waiting state, that is, the waiting state flag WAIT is "1". If the waiting state is "1" (YES), the process returns, and if the waiting state is released "0" (NO), the process returns. Proceed to next step 73.

Step 73: Perform performance data reproduction processing as shown in FIG. FIG. 8 is a diagram showing details of the reproduction processing in step 73. In this reproducing process, the same process is sequentially performed on the nine tracks in the performance information memory 4. This reproduction process is sequentially executed in the following steps. Step 81: The traveling state flag R in step 71 of FIG.
Since it is determined that the UN is "1" and it is not in the waiting state (NO) in step 72, the track number register TR is set to "0". Here, the track number register TR is a register for specifying a reproduction track of the performance information memory 4, and stores values of "0" to "8".

Step 82: Timing counter TM
Stored value of (TR), that is, track number register TR
It is determined whether the timing count value of the track corresponding to the stored value of "0" or less is equal to or less than "0" (YES), the process proceeds to step 83 and is greater than "0" (N
O), the process proceeds to step 84. Step 83: Since it is determined in the previous step 82 that the timing count value is "0" or less, the performance data pointed to by the read pointer of the track corresponding to the track number register TR is read.

Step 84: The fact that the timing count value is judged to be larger than "0" in the previous step 82 means that it is not the timing for reading the performance data. Therefore, the timing counter TM ( The stored value of (TR) is decremented by "1", and the process proceeds to step 8A. Step 85: It is judged whether the data read in the previous step 83 is end data, and the end data (YE
In the case of S), it means that all the performance data of the track corresponding to the track number register TR has been read out, so the process jumps to step 8A and the other data (N
In the case of O), it means that all the performance data of the track has not been read yet, so the routine proceeds to step 86.

Step 86: Set the read pointer to the read address of the next data. For example, the data read in step 83 is the LED lighting data or LE.
In the case of D blink data, the pointer is advanced by two, in the case of key-on data, the pointer is advanced by four, and in the case of duration data, the pointer is advanced by two. Step 87: It is judged whether or not the data read in the previous step 83 is duration data, and if it is duration data (YES), the process proceeds to step 88,
For other data (NO), the process proceeds to step 89. Step 88: Since it was determined in the previous step 87 that the data is duration data, the duration time is stored in the timing counter TM (TR) of the track corresponding to the track number register TR.

Step 89: Since it is determined that the data read in the previous step 83 is neither end data nor duration data, the data processing of FIG. 9 is performed on the read data. FIG. 9 shows this step 89.
It is a figure which shows the detail of the data processing of. This data processing is sequentially executed in the following steps. Step 91: It is judged whether or not the data read in step 83 of FIG. 8 is key-on data. If the data is key-on data (YES), the process proceeds to step 92, and if it is other data (NO), the process proceeds to step 93. move on.

Step 92: Since the key-on data is determined in the previous step 91, the key-on process of FIG. 1 is performed. FIG. 1 is a diagram showing details of the key-on processing in step 92. This key-on process is sequentially executed in the following steps. Step 101: It is determined whether or not the value of the mode number register MOD is "0". If "0" (YES), the process jumps to step 108 and "1", "2".
In the case of “3” or “4” (NO), the process proceeds to step 102.

Step 102: The key-on data is determined in step 91 of FIG. 9, and the value of the mode number register MOD is determined to be a value other than "0" in the previous step 101. Therefore, the key code register KC is read. The key code of the issued key-on data is stored, and the velocity data of the read key-on data is stored in the velocity register VL. Step 103: The key code newly stored in the key code register KC in the previous step 102 is additionally stored in the sounding key code list. Step 104: Set the wait state flag WAIT to "1" to set the wait state.

Step 105: Mode number register MO
Determine whether the value of D is "2" or "3",
If "2" or "3" (YES), go to next step 10
In step 6, if "1" or "4" (NO), the process jumps to step 107. Step 106: The determination of YES in the previous step 105 is a rhythm sound pronunciation instruction mode in which the performance processing mode produces a rhythm sound (for example, a metronome sound) having no sense of pitch at least at the timing at which the key should be pressed. This means that the rhythm sound (the metronome sound in this embodiment) is sounded at a volume corresponding to the value stored in the velocity register VL.

Step 107: This time, it is judged whether the value of the mode number register MOD is "1" or "3", and if it is "1" or "3" (YES), the process proceeds to the next step 108, In the case of "2" or "4" (NO), FIG.
And returns to step 82. When Step 108 to Step 10A are YES in the previous step 101 or YES in the previous step 107,
That is, this is a process performed when the performance processing mode is "0", "1" or "3". Mode number register MOD
"0" means that the performance processing mode is a normal automatic performance mode, and that the mode number register MOD is "1" or "3" means that
This means that the performance processing mode is a key-depression tone generation instruction mode in which a tone corresponding to at least a key to be depressed is generated at a timing at which the key should be depressed. Therefore, the read key-on data (key code, velocity and gate time)
The following steps 108 to 10A are performed in order to generate a musical sound corresponding to.

Step 108: A sounding process corresponding to the key-on data (key code and velocity) is performed.
That is, a soundable channel is assigned, and the pitch corresponding to the key code is generated on that channel. Step 109: The channel number of the channel assigned in the previous step 108 is stored in the channel register CH. Step 10A: Gate time register GT corresponding to the channel register CH allocated in the previous step
Store the gate time in the key-on data in (CH),
The process returns to step 82 in FIG. Note that the stop of sound generation, that is, the key-off process, is performed based on the channel number and the gate time stored in the channel register CH and the gate time register GT (CH) based on the step 7 in FIG.
5 to step 7A.

Step 93: Since it is determined in the previous step 91 that the data is not key-on data, it is determined whether or not the data read out in step 83 of FIG. 8 is LED lighting data, and the LED lighting data (YES). If No, the process proceeds to Step 94. If not (NO), the process proceeds to the next Step 96. Step 94: It is judged whether the mode number register MOD is "0" as in the step 101,
If the value is other than “0” (NO), proceed to the next Step 95,
If "0" (YES), the process returns to step 82 of FIG. Step 95: Since the read data is LED lighting data and it is determined that the mode number register MOD is other than "0", here, the LED corresponding to the key code of the LED lighting data is lit, The process returns to step 82 in FIG.

Step 96: In the previous step 91, it is determined that it is not key-on data (NO), and in the previous step 93, L
Since it is determined that it is not the ED lighting data (NO), FIG.
It is determined whether or not the data read in step 83 is LED blinking data, and LED blinking data (YES)
If NO, the process proceeds to step 97. If not (NO), the process proceeds to step 99. Step 97: It is judged whether the mode number register MOD is "0" as in the step 94,
If the value is other than “0” (NO), the process proceeds to the next step 98,
If "0" (YES), the process returns to step 82 of FIG. Step 98: Since the read data is LED blinking data and it is determined that the mode number register MOD is other than "0", here, the LED corresponding to the key code of the LED blinking data is blinked, The process returns to step 82 in FIG. Step 99: The determination of NO in the previous step 96 means that the data read in step 83 of FIG. 8 is not key-on data, LED lighting data, or LED blinking data. Other processing corresponding to the data is performed.

Step 8A: In this step, whether the stored value of the timing counter TM (TR) is decremented by "1" in step 84 or is it judged in step 85 that the data of the current track number TR is the end data? , Or at step 88 the timing counter T
This is performed when the duration time is stored in M (TR), and the value of the track number register TR is incremented by "1" in order to perform the same reproduction processing as described above for the next track. .

Step 8B: It is judged whether or not the value of the track number register TR becomes "9" by the increment processing of the previous step 8A, that is, whether the reproduction processing is completed for all the tracks. Proceeding to step 74 of FIG. 7, step 8 if NO
The process returns to 2 and the same reproduction process as described above is repeatedly executed for the next track.

Step 74: The same comparison process as in FIG. 5 is performed. The comparison progress processing in this step is more preferable than the key depression instruction by the LED lighting display in step 95 of FIG. 9, the key depression instruction by the metronome sound generation in step 106 of FIG. 1 or the key depression instruction by the key depression sound generation in step 10B. This is a process performed when the player presses a key first. That is, the fact that the key has been depressed before these key depression instructions means that the key has been depressed before the key code to be instructed to be depressed in step 103 of FIG. 1 is stored in the tone generation key code list. Even if the comparison progress processing of step 46 of FIG. 4 is performed at this point, it is determined as NO in step 52 of FIG. 5, so this comparison progress processing is meaningless. Therefore, in order to deal with such a case, the same comparison progress processing as in FIG. 5 is performed here.

In steps 75 to 7A, the key-off process for stopping the musical sound generated in step 108 of FIG. 1 is performed on all channels. Step 75: Set the value of the channel register CH to "0". Step 76: It is judged whether or not the value of the gate time register GT (CH), that is, the gate time of the channel corresponding to the value of the channel register CH is "0" or less, and if it is "0" or less (YES), the process goes to step 77. If it is larger than "0" (NO), the process proceeds to step 78.

Step 77: Since the gate time was judged to be "0" or less in the previous step 76, the channel number CH and the key-off signal are output to the tone generator circuit 9 in order to end the sounding of that channel. To do. Step 78: The gate time is “0” in the previous step 76.
Since it is determined to be larger, the value stored in the gate time register GT (CH) is decremented by "1". Step 79: Step 76 to the next channel
In order to perform the process of step 78, the value of the channel register CH is incremented by "1". Step 7A: The value stored in the channel register CH is "1".
6 ”, that is, whether the processing of step 77 or step 78 has been performed for all 16 channels. If YES, return and wait until next interrupt timing, and if NO, Returns to step 76 and repeats the same processing for the remaining channels.

FIG. 10 shows how the electronic keyboard musical instrument with a key depression instruction function according to the present invention issues a key depression instruction.
It is the figure which showed the operation example typically. FIG. 10A is a diagram showing an example of a musical score based on the performance data of FIG.
0 (B) to (E) are time-series diagrams showing a key depression instruction by turning on / blinking the LED group 12 provided near the upper side of the keyboard 11 according to the musical score example.
The lighting / blinking state of the LED group 12 changes in the order of FIG. 10 (B) to FIG. 10 (E). In the figure, the LEDs that are lit are shown as black circles, the LEDs that are not emitting light are shown as white circles, and the blinking LEDs are shown as stitch circles. The alphanumeric characters C4 to E5 on the keyboard are the key code of the key.

According to the example of the musical score of FIG. 10A, the keys are pressed in the order of "Fa (F4)", "So (G4)" and "La (A4)". The alphanumeric characters in parentheses are key codes. First, when the load switch is operated, the performance data as shown in FIG. 3 is read from the disk 14 and written in the performance information memory 4 by the process of step 48 in FIG. Then, it is assumed that the value of the mode number register MOD is set to "3" by the processing of step 4A of FIG. Next, when the automatic performance start switch is operated, the automatic performance start process of step 4F (FIG. 6) of FIG. 4 is performed.

FIG. 10B shows the LED1 when the interrupt processing of FIG. 7 is first performed after the above processing is completed.
2 shows the lighting / blinking state. Step 4 of FIG. 4 above
Since the traveling state flag RUN is set to "1" by the process of C and the waiting state is released (the waiting state flag WAIT is set to "0") by the process of step 62 of FIG. 71 for Y
ES, NO in step 72, step 73
The reproduction process of (FIG. 8) is performed.

In the reproducing process of FIG. 8, after step 81, it is judged YES in step 82. Then, the first data of FIG. 3, that is, the LED lighting data of “Fa (F4 = 65)” is read out by the process of step 83, and through step 85 to step 87, step 89.
The data processing of FIG. 9 is performed. In the data processing of FIG. 9, since the data read in step 83 is the LED lighting data and the value of the mode number register MOD is “3”, the processing of step 95 is performed through step 91, step 93 and step 94. Done. By the processing of step 95, the key code "F4" is displayed as shown in FIG.
The LED corresponding to “= 65” comes on.

After the above processing, step 8 in FIG. 8 is again executed.
A determination of 2 is made. At this point, the duration data has not been read yet, so the determination in step 82 is YES, and the LED blink data of “SO (G4 = 67)” in FIG. 3 is read by the processing in step 83, and step 85 ~ Step 89 through step 89
The data processing of FIG. 9 is performed. In the data processing of FIG. 9, since the data read in step 83 is the LED blinking data and the value of the mode number register MOD is “3”, step 91, step 93, step 96 and step 97 are performed, and then step 98. Is processed.
By the processing of step 98, the LED corresponding to the key code "G4 = 67" blinks as shown in FIG. 10 (B).

After the above processing, step 8 in FIG. 8 is again executed.
A determination of 2 is made. At this point in time, the duration data has not been read yet, so the determination in step 82 is YES, and the first key-on data in FIG. 3, that is, “Fa (F4 = 65)” is determined by the processing in step 83.
Key-on data regarding
After step 87 and step 91 of FIG. 9, the key-on process of step 92 (FIG. 1) of FIG. 9 is performed. In the key-on process of FIG. 1, since the value of the mode number register MOD is “3”, the processes of step 102 to step 104, step 106 and step 108 to step 10A are performed through the determinations of step 101, step 105 and step 107. Be seen.

In step 102, the key code "F4 = 6
5 ”is in the key code register KC and velocity is“ 15 ”
Are stored in the velocity register VL. In step 103, the key code "F4 = 65" is additionally stored in the tone generation key code list. In step 104, the wait state flag WAIT is set to "1". In step 106, the metronome sound is produced at a volume of velocity "15". In step 108, the key code "F4
= 65 ”and velocity“ 15 ”are generated by the tone generator circuit 9. In step 109, the channel number to which the sound is assigned is stored in the channel register CH. In step 10A, the gate time register GT
The gate time “17” is stored in (CH).

After the above processing, step 8 in FIG.
Although the determination of step 2 is performed, since the duration data has not yet been read out at this point, the determination of step 82 is YES, and the processing of step 83 is performed.
The first duration data, that is, the duration time "24" is read out, and the determination process of step 87 is performed through steps 85 and 86. This time, since it is duration data, YES at step 87.
Then, the processing of step 88 is performed. In step 88, the duration time "24" is stored in the timing counter TM (0). Then, in step 8A, the value of the track number register TR is incremented by "1". After that, the same reproduction process as described above is repeatedly performed on the tracks "1" to "8" of the track number register TR, and when the value of the track number register TR becomes "9" by step 8B, The processing from step 74 onward in FIG. 7 is performed.

At step 74 (comparison progress processing of FIG. 5), since the waiting state is set at step 104 of FIG. 1, YES is determined at step 51, and the processing of the next step 52 is performed. In this embodiment, since the player's key depression is performed after the key depression instruction (that is, after the LED is turned on), the player's key depression is not present at the time of the determination in step 52. Therefore, in step 52, it is determined to be NO, and the processing from step 75 to step 7A is performed on the 16 channels of channel numbers CH = “0” to “15” for the performance data read from each track.

At the time when a series of interrupt processing is completed, that is, the processing of step 95, the key code register K
L corresponding to “Fa (F4 = 65)” which is the stored value of C
The ED lights up as shown in FIG. 10 (B) (at the same time, the metronome sound and the key depression sound are emitted), and the next key depression sound "SO (G4 = 6
7) ”blinks as shown in FIG. 10B, and then the player presses the lit key, it is judged as YES in step 43 of the main routine of FIG. Sound generation processing for the key depression is performed. Then, in the next step 46, the comparison progress processing of FIG. 5 is performed. In this comparison progress process, YES is determined in step 51, and the determination process of step 52 is performed. At step 52, what is stored in the pronunciation key code list is "F4" of the key-on data "Fa (F4 = 65)".
= 65 ”only, so YES is determined here and the processes of steps 53 to 55 are performed. That is, the LED corresponding to the turned on "Fa (F4 = 65)" is turned off, the waiting state flag WAIT is set to "0", the waiting state is canceled, and "F" is displayed from the sound generation key code list.
4 = 65 ”is cleared.

By releasing this waiting state, the interrupt processing from step 73 onward in FIG. 7 is executed.
However, after that, the decrement process of step 84 of FIG. 8 and step 78 of FIG. 7 is executed. Then, the value of the gate time register GT (CH) becomes “0” first, and the process of step 77 causes “F (F4 = 6
5) ”, the key depression sound stops. Next, the value of the timing counter TM (0) becomes "0", and the processing of step 83 is performed. This time, the second LED lighting data regarding "SO (G4 = 67)" in FIG. 3 is read by the processing of step 83. Then, in the data processing of FIG. 9, the processing of step 95 is performed, and L corresponding to the key code “G4 = 67” which is blinking as shown in FIG.
The ED will now come on as shown in FIG.

After the processing of step 95, the LED blinking data regarding "LA (A4 = 69)" of FIG. 3 is read by the processing of step 83 of FIG. Then, the process of step 98 is performed, and the LED corresponding to the key code "A4 = 69" blinks as shown in FIG. Then, after the processing of step 98, the processing of step 83 of FIG. 8 is performed again, and “SO (G4 = 6
7) ”and the second key-on data is read out,
The key-on process of step 92 (FIG. 1) of FIG. 9 is performed.

Steps 102 to 102 of the key-on process of FIG.
By the processing of 104, 106, 108 to 10A, the key code "G4 = 67" is stored in the key code register KC and the velocity "15" is stored in the velocity register VL, and the key code "G4 = 67" is generated. It is additionally stored in the list, the waiting flag WAIT is set to "1", and the metronome sound is velocity "1".
5 ”, the tone of key code“ G4 = 67 ”and velocity“ 15 ”is sounded by the tone generator circuit 9, the channel number to which the sound is assigned is stored in the channel register CH, and the gate time register GT
The gate time “17” is stored in (CH).

After the above processing, the second duration data of FIG. 3 is read by the processing of step 83 of FIG. 8, the processing of step 88 is performed, and the duration time “24” is set in the timing counter TM (0). Is stored. Then, in step 8A, the value of the track number register TR is incremented by "1", and thereafter, the same reproduction process as described above is repeatedly performed on the tracks "1" to "8" of the track number register TR, When the value of the track number register TR becomes "9" in step 8B, the processes after step 74 in FIG. 7 are performed.

Similarly to the above, the LED corresponding to "SO (G4 = 67)" is lit as shown in FIG.
When the key is pressed, the tone generation process of step 45 and the comparison progress process of step 46 of FIG. 4 are performed. The LED corresponding to “SO (G4 = 67)” that has been turned on is turned off, the waiting state flag WAIT is set to “0”, the waiting state is canceled, and the sounding key code list is also cleared.

By releasing this waiting state, the interrupt processing after step 73 in FIG. 7 is executed,
In the same manner as described above, the LED lighting data regarding "LA (A4 = 69)", the LED blinking data regarding "DO (C5 = 72)", the key-on data regarding "LA (A4 = 69)" and the third data in FIG. The duration data is read out in order, and the key code "A4 =
The LED corresponding to “69” lights up, and “DO (C5 = 7
2) ”blinks and the key code“ A4 =
69 "and velocity" 15 "are generated by the tone generator circuit 9.

In the operation example of FIG. 10, the case where the value of the mode number register MOD is "3" has been described, but when the value of the mode number register MOD is "1", the metronome sound of step 106 of FIG. Key depression instruction processing by pronunciation is not performed. In the case of “2”, step 109 in FIG.
The key depression instruction processing by the key depression sound generation in step 10A is not performed. In the case of "4", the key depression instruction by the LED as shown in FIG. 10 is performed, but the key depression instruction processing by the metronome sound and the key depression sound is not performed.

In the above embodiment, step 106 is performed.
In the above, the case where the metronome sound is pronounced at a volume corresponding to the velocity has been described, but the present invention is not limited to this, and it goes without saying that it may be pronounced at a preset predetermined volume. Further, in the above-described embodiment, the case where the key depression instruction is given using the LED has been described, but the present invention is not limited to this, and the key depression instruction may be given to the LCD or the like by using a graphic symbol such as a black circle or a white circle. Good. In the above-mentioned embodiment, the electronic musical instrument having the display portion near the upper side of the keyboard has been described as an example, but only the display portion is provided to the musical instrument having no display portion so that the key depression instruction as described above is given. Good. Further, in the above-described embodiment, when the key instructed to press a key is actually pressed, the key press instruction and the actual key press operate synchronously so as to proceed to the next key press 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 embodiment, 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, the LEDs of different colors may be turned on between the right hand key depression instruction and the left hand key depression instruction. Further, different colors may be lit and blinked between the LED lighting corresponding to the current key depression sound and the LED blinking corresponding to the next key depression sound. Further, the brightness of the LED corresponding to the next key depression sound may be dark and the brightness of the LED corresponding to the current key depression may be brighter than that. Contrary to the above embodiment, the LED corresponding to the next key depression sound
May be lit and the LED corresponding to the current key press may be displayed in a blinking manner.
In the above embodiment, the case where the LEDs are arranged in one row has been described, but the LEDs may be arranged in two rows above and below. In this case, the lighting color may be different in the vertical direction, or one of the LEDs is used for the current key press sound and the other L is used.
The ED may be used for the next key depression.

In the above embodiment, the LED corresponding to the current key depression sound
The explanation has been given on the case where only the LED corresponding to the next key press sound is lit and blinked, but the performance data is divided into appropriate phrases, and the LED corresponding to that phrase is displayed for a moment at the time of phrase switching, or phrase switching is performed. It is displayed until a predetermined time elapses from the time when the phrase is switched, is displayed until the first key instructed to be pressed from the time when the phrase is switched, or a predetermined number (2,
3) The note may be displayed until a key is pressed, or may be displayed until a predetermined number of beats elapses from the phrase switching time. In addition, the LED corresponding to the phrase is changed to the LED corresponding to the next keypress.
The blinking may be performed in a cycle longer than the blinking cycle.

In the above-mentioned embodiment, the electronic keyboard instrument has been described as an example. However, in other electronic instruments, the operation timing may be instructed by a rhythm without a sense of pitch such as a metronome sound. Needless to say. In the above embodiment, the LED lighting data, L
The case where performance data consisting of a combination of ED blink data, key-on data, and duration data is stored has been described.
It goes without saying that the D-lighting data and the LED blinking data) and the key-on data may be recorded in different tracks. Further, in such a case, since the data regarding the LEDs can be created based on the performance data regarding the right-hand key depression and the performance data regarding the left-hand key depression, respectively, the performance information memory stores the performance regarding the left-hand and right-hand key depressions. You may make it memorize | store only data and create the data regarding LED based on this performance data later.

[0069]

According to the present invention, there is an effect that the player can easily recognize the timing at which the key should be depressed by the rhythm sound having no sense of pitch.

[Brief description of drawings]

FIG. 1 is a diagram showing details of key-on processing in step 92 of FIG.

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

FIG. 3 is a diagram showing a configuration example of performance data for one track 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 shows step 46 of FIG. 4 and step 74 of FIG.
It is a figure which shows the detail of the comparison progress process of.

FIG. 6 is a diagram showing details of an automatic performance start process in step 4G of FIG.

FIG. 7 is a diagram showing an interrupt process executed by 96 interrupts per bar.

FIG. 8 is a diagram showing details of a reproduction process in step 73 of FIG.

9 is a diagram showing details of the data processing of step 89 of FIG.

FIG. 10 is a diagram schematically showing an operation example of how an electronic keyboard instrument with a key depression instruction function according to the present invention emits an LED to issue a key depression instruction.

[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

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G10H 1/40 7/02

Claims (3)

[Claims] 1. A plurality of performance operators, performance information supply means for supplying performance information, and a pitch sense at a timing at which the performance operators should be operated based on the performance information sequentially supplied from the performance information supply means. An electronic musical instrument with a performance operation instructing function, comprising: 2. The electronic device with performance operation instructing function according to claim 1, wherein the sound producing means produces the rhythm sound without the pitch feeling at a volume corresponding to the information regarding the volume included in the performance information. Musical instrument. 3. A plurality of display means provided respectively corresponding to the plurality of performance operators, and displaying the display means corresponding to the performance information sequentially supplied from the performance information supply means, The electronic musical instrument with a performance operation instructing function according to claim 1, further comprising an instruction means for instructing a performance operator to be operated.