JP2552310Y2 - Automatic accompaniment device and electronic musical instrument using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an automatic accompaniment apparatus for performing an automatic accompaniment performance based on a pre-stored accompaniment pattern and an electronic musical instrument using the same.

2. Description of the Related Art Conventionally, there has been known an automatic accompaniment apparatus capable of performing an automatic accompaniment performance using a chord designated by a performance operator such as a keyboard and an accompaniment pattern stored in advance. According to this method, the player only has to input the designated codes one after another as the music progresses. There is also a system in which the player himself stores and reproduces a chord in real time in advance.

[Problem to be solved by the invention] However, depending on the music, a portion where the same bar is repeatedly played (for example, a repetition symbol And a part indicated by DS), and it is very troublesome to input a chord in the same pattern many times in the same pattern, even when inputting as the song progresses or when storing it in advance .

Further, when such an automatic accompaniment device is added to an electronic musical instrument, a method is usually used in which a key range is divided into right and left at a predetermined position, and a melody is played in a right range and a chord is specified in a left range. . In such a case, not only the trouble of the repetitive input operation as described above but also both hands are blocked during the performance, so that there is a problem that an operation for adding an effect to a musical tone generated by a bender or the like cannot be thought out.

In order to solve such a problem, by preparing a plurality of sets of chord patterns arranged in a predetermined order, selecting and inputting this pattern according to the music to be played, and performing an automatic accompaniment performance, Of course, it is conceivable to adopt a method of preventing both hands from being constantly occupied during a performance or a similar troublesome repetition of chord input.However, in general, a chord change in a song is rarely a repetition of the same pattern, In such a system, the performance expression was poor, and the player was extremely dissatisfied.

An object of the present invention is to solve the above-described problem, and to provide an automatic accompaniment apparatus that eliminates the trouble of repeatedly inputting the same chord pattern and does not restrict the performance expression. It is in.

Means for Solving the Problems In order to achieve the above object, the present invention provides an accompaniment pattern storage means for storing an accompaniment pattern, a performance operator for inputting at least arbitrary chord information, and an input using the performance operator. First instructing means for instructing storage of chord information input by the performance operator in an automatic accompaniment apparatus for performing automatic accompaniment based on the chord information to be performed and the accompaniment pattern stored in the accompaniment pattern storage means. When,
When an instruction is given by the first instruction means while an automatic accompaniment is being performed based on chord information input by operation of the performance operator and an accompaniment pattern stored in the accompaniment pattern, Chord information storage means for starting storage of chord information input by the performance operator;
Second instruction means for instructing the chord information storage means to stop the storage of the chord information, and second instruction means for storing chord information inputted by the performance operator.
When an instruction is given by the instruction means, the storage of the code information in the code information storage means is terminated,
The code information from the position where the recording is started to the position where the recording is ended is sequentially and repeatedly read from the code information storage means, and the automatic accompaniment is performed based on the read code information and the accompaniment pattern from the accompaniment pattern storage means. The first automatic accompaniment control means, the third instruction means, and the first automatic accompaniment control means performing the automatic accompaniment, when the instruction is issued by the third instruction means, While reading the chord information from the chord information storage means up to the position where the storage is completed and performing the automatic accompaniment, ending the reading of the chord information,
And a second automatic accompaniment control means for performing automatic accompaniment based on the chord information input by the performance operator and the accompaniment pattern from the accompaniment pattern storage means.

The present invention also provides accompaniment pattern storage means for storing accompaniment patterns, performance operators for inputting at least arbitrary chord information and pitch information, and chord information and the accompaniment pattern storage means input by the performance operators. First accompaniment signal creating means for creating an accompaniment signal based on the accompaniment pattern stored in the memory, and pitch signal creating means for creating a pitch signal based on pitch information input by the performance operator A first instruction means for instructing storage of chord information input by the performance operator; and chord information input by operation of the performance operator and stored in the accompaniment pattern. While the automatic accompaniment is being performed based on the accompaniment pattern, if the instruction of the first instruction means is given, the code input by the performance operator is performed. Code information storage means for starting storage of information; second instruction means for instructing the code information storage means to stop storing the code information; and code information input by the performance operator. When the instruction by the second instruction means is given during the recording, the storage of the code information in the code information storage means is terminated, and the code information from the storage start position to the recording end position is stored. A second accompaniment signal creating means for creating an accompaniment signal based on the read chord information and the accompaniment pattern from the accompaniment pattern storage means.
When an instruction is given by the third instruction means while automatic accompaniment is being performed by the third instruction means and the first automatic accompaniment control means, the position at which storage is completed from the code information storage means. After reading out the chord information sequentially to create an accompaniment signal, the reading of the chord information is terminated, and the chord information and the accompaniment pattern input to the first accompaniment signal creation means again by the performance operator are stored. Control means for controlling generation of an accompaniment signal based on the accompaniment pattern from the means.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<< Configuration >> FIG. 1 is an external view of one embodiment of the present invention.

In the figure, an accompaniment keyboard 3-1 consisting of a plurality of keys for designating a chord to be automatically played along with the pre-stored automatic accompaniment pattern during the automatic performance of the pre-stored automatic accompaniment pattern is provided on the front left side of the main body. And a melody keyboard 3-2 comprising a plurality of keys for designating a pitch for a melody performance performed in accordance with the automatic accompaniment. A power (power) switch 4-1 for turning on / off the power is provided at the upper left end of the upper surface of the main body. On the right side of the power switch 4-1, an automatic accompaniment mode (Finged Red Chord) that allows the melody to be played in accordance with the automatic accompaniment in which the chord and bass are linked to the rhythm, and a normal manual performance MODE to switch to normal mode (OFF: OFF)
A switch (mode switch) 4-2 is provided. The mode switch 4-2 and the accompaniment keyboard 3
In the automatic accompaniment performance mode, a SYNC mode (synchronous mode) in which automatic accompaniment is started at the same time as the operation of the accompaniment keyboard 3-1 is started. SYNC / FILL-IN (SYNCHRONI
ZED) / Fill-in) key 4-3 and STAR on the right side for arbitrarily starting and stopping rhythm accompaniment and automatic accompaniment
A T / STOP key 4-4 is arranged.

On the right side of the upper center of the main body, a SEGNO (Segno) key 4-5 for instructing to store a code to be input, and for instructing to end the storing operation.
A DS (Darseño) key 4-6 and a TO-CODA key 4-7 for instructing that the stored chord is read out and the automatic performance performed by the read chord is ended; Are arranged in one horizontal row.

FIG. 2 is a system configuration diagram of one embodiment having the above-described appearance.

In the figure, CPU1 is a microprocessor and RO
It operates in accordance with a program stored in an M (read only memory) 2 and controls the entire system.
In addition to the above programs, the ROM 2 stores automatic accompaniment patterns such as rhythm information and chord information, pitch data corresponding to each key of the keyboard, and the like. The keyboard 3 includes an accompaniment keyboard 3-1 and a melody keyboard 3-2 shown in FIG. The switch group 4 includes switches such as a power switch 4-1 and a mode switch 4-2 shown in FIG. 1, and the ON / OFF state of each switch is read out by the CPU 1 at a predetermined cycle. In the automatic accompaniment mode, a RAM (random access memory) 5 is used to depress the accompaniment keyboard 3-2 from when the segno key 4-5 shown in FIG. 1 is operated to when the DS key 4-6 is operated. It has an area for storing codes sequentially input by a key operation in real time. Then, the stored input codes are sequentially and repeatedly read out by the CPU 1 in the order of storage, and the CPU 1 performs the accompaniment based on the accompaniment patterns stored in the ROM 2 and the read input codes as described in detail below. User data is created and output to the sound source unit 6.

The tone generator 6 is a digital tone generator that generates musical tones according to the PCM tone generator, PD tone generator, iPD tone generator, and the like. In the automatic accompaniment mode, the CPU 1 reads the accompaniment pattern read from the ROM 2 and the accompaniment pattern read from the RAM 5. Accompaniment data created on the basis of the output chord or the chord input by pressing the accompaniment keyboard 3-1 and a melody input by pressing all keys of the keyboard 3 or pressing a melody keyboard 3-2. A digital tone signal composed of a melody sound and an accompaniment is generated based on the pitch information of the sound.

The D / A converter 7 converts the digital tone signal generated by the tone generator 6 into an analog tone signal.
The analog tone signal output from the D / A converter 7 is an analog converter, and is output to the outside via a sound system 10 including an amplifier 8 and a speaker 9.

<< Operation >> Next, the operation of the embodiment having the above configuration will be described.

FIG. 3 is a diagram for explaining a process of storing and reproducing a chord being input in accordance with the performance timing of an automatic accompaniment pattern.

In the figure, the auto accompaniment pattern is separated by a “+” sign.
The bars are indicated by F1 to F20. The “−” mark between the “+” mark and the “+” mark indicates the performance timing of each bar. In addition, in the description on the right side of “Operation:”, an inverted triangle “▽” indicates a key operation, a description in parentheses indicates a step number of a processing operation described later, and a number outside the right of the parenthesis indicates an operation. FIG.

Now, the tone, tempo, rhythm, etc. are set in advance by switches, not shown, etc., the automatic accompaniment mode is set by the mode switch 4-2, and the sync mode is set by the sync / fill-in key 4-3. It is assumed that the segno key 4-5 for instructing the start of storage of a chord (hereinafter referred to as an input chord) input by the accompaniment keyboard 3-1 has also been turned on.

First, the user sets the accompaniment keyboard 3-1 shown in FIG.
When the operation is started, the chord specified by the operated key is automatically played in the automatic accompaniment pattern consisting of the preset tone, tempo, rhythm, etc., and at the same time, the chord being played is It is memorized. In FIG. 3, the delimiter "+" of the first bar F1 is shaded, which means that the storage of the input code in the RAM 5 is started from the first bar F1. Things. Also,
“S” below the shaded “+” mark indicates the segno position (start point after repetition). Subsequently, when a chord is input by a key operation of the accompaniment keyboard 3-1 in accordance with the timing of the automatic performance, the automatic accompaniment performance corresponding to the input code by the key operation is performed in the following bar F.
Continue to 2, 3, ...

Next, when ending the storage of the input code in the RAM 5 and moving to the performance of the automatic accompaniment based on the stored code,
For example, at the beginning of bar F16 in the same figure,
Operate -6 (the location indicated as "DS key" in the figure). Then, the input chord is stored up to the last beat of the bar F16 at the playing position at the operated timing, and the storing operation is completed. In the same figure, measures
The hatching of the delimiter “+” indicating the end of F16 indicates that the storage of the input code ends at the bar F16. Also, the shaded "+"
"DS" below the mark indicates the Darsenho position (repetition point). Then, when the storage operation is completed,
Immediately, the codes from the segno position to the darseño position stored in the RAM 5 are repeatedly read in the order of storage, and the automatic accompaniment performance (chord accompaniment) based on the read codes is repeatedly performed.

To end the automatic accompaniment based on the stored chord and return to the automatic accompaniment based on the input code by depressing the key of the accompaniment keyboard 3-1, operate the TO-CODA key 4-7 (see FIG. -CODA key "). Then, after the above-mentioned automatic accompaniment is performed until the following Darsenho position (end of measure F16), the next measure F1
From the sounding timing of 7, the mode is switched again to the automatic accompaniment based on the input code by pressing the key of the accompaniment keyboard 3-1. "Coda" under the leading delimiter "+" of the bar F17 shown in FIG. 17 indicates a position at which the repetitive reproduction is completed and a transition is made to the normal automatic accompaniment (automatic accompaniment by the input code).

It should be noted that the Segno key 4-5 is not played from the beginning,
When the on operation is performed in the middle of the performance, the storage of the input code in the RAM 5 is started from the beginning of the measure following the timing of the on operation, and the segno position is determined by the measure at which the segno key 4-5 is turned on. Will be set to the first beat of the next bar.

FIG. 4 shows the performance control of the automatic accompaniment as described above.
6 is a flowchart illustrating a processing operation of CPU1. Hereinafter, with reference to this flowchart, the storage of the input code during the automatic accompaniment performance and the automatic accompaniment repetitive reproduction processing based on the stored input code performed by the CPU 1 will be described.

Although not shown, the following flags are used in the following processing.

Automatic accompaniment flag JBF: Automatic accompaniment mode if "1", manual mode if "0" Segno flag SNF: Segno position already set if "1", not set if "0", DSF DSF: Dal if "1" Segno position set, not set if “0”, TO-CODA flag TCF: If “1”, repeat play performance end specified, if “0” not specified, play flag RPF: “1”, during repeat play, “ If "0", no key press flag OKF: "1", initial key press operation with left hand keyboard (accompaniment keyboard 3-1); if "0", no key press operation; memory flag MRF: "1", input code During storage, if "0", the above is not true.

First, the processing operation of the flowchart of FIG. 4 starts when the power switch 4-1 shown in FIG. 1 is operated and the power is turned on.

First, the CPU 1 periodically scans the status (on / off state) of each switch shown in FIG. 1, and first determines whether or not the mode switch 4-2 is on (S1). If it is turned on, the automatic accompaniment flag JBF is set to "1" (S2).

When the mode switch 4-2 is turned on by the above operation, the automatic accompaniment mode is set.

Next, the CPU 1 determines whether or not the segno key 4-5 is turned on (S4). If the segno key 4-5 is turned on, the CPU 1 determines that the setting of the segno position is instructed, and sets the segno flag SNF to ""1" is set (S5).

When the segno key 4-5 is turned on by the above operation, the segno flag is set, the set segno flag is determined in a process S28 described later, and storage of the input code is started.

Next, the CPU 1 determines whether the DS key 4-6 is on (S6). For example, when the storage key of the input code has just been instructed by operating the segno key 4-5 as described above, and the DS key 4-6 for instructing the end of the storage operation has not been operated yet. Indicates that the above determination is NO, in which case the TO-CODA
It is determined whether or not the key 4-7 is on (S
8). In this case as well, as described above, the storage of the input chord has just been instructed, and the stop of the operation of reproducing and playing the stored chord has not yet been instructed.
If the CODA key 4-7 is not operated, the above determination is NO, and in this case, it is next determined whether or not the START / STOP key 4-4 is on (S10). .
For example, when the player has just started in the automatic performance mode as described above and the START / STOP key 4-4 is on, the determination is YES.

Then, in this case, next, the automatic accompaniment flag is set to “1”.
Is determined (S11), and the automatic accompaniment flag J
If BF is "1", it is determined that the mode is the automatic accompaniment performance mode, and then it is determined whether or not the reproduction flag RPF is "1" (S12).

If the reproduction flag RPF is not "1", the performance of the automatic accompaniment based on the chord stored in the RAM 5 is not instructed, and the chord input by the key depressing operation of the accompaniment keyboard 3-1 is performed. Is determined to be instructed, and all keys of the melody keyboard 3-2 shown in FIG. 1 are scanned (S16), and it is determined whether or not a key is pressed (S16).
17).

If there is a depressed key, it outputs to the tone generator 6 tone information for generating a tone having a pitch designated by the depressed key (S18).

Next, all the keys of the accompaniment keyboard 3-1 shown in FIG. 1 for chord input are scanned (S19), and it is determined whether or not a key is pressed (S20).

If there is a key that has been depressed, the key depressing flag OKF is referred to, and it is determined whether or not the flag is "1" (S21). If the key press flag OKF is “0” instead of “1”, it is determined that the key press detected in the process S19 is the first key press of the accompaniment keyboard 3-1 and the key press flag is determined. OKF is set to "1" to store the fact that the first key depression by the accompaniment keyboard 3-1 has been performed (S22),
Subsequently, the start address of the automatic accompaniment pattern stored in the ROM 2 is set in an address register (not shown) (S23). Then, after the designated code is determined based on the key information of the accompaniment keyboard 3-1 and the code determination information stored in the ROM 2 (S24), the specified code is automatically determined from the address stored in the address register of the ROM 2. The accompaniment pattern is read (S25). Then, the accompaniment sound data for automatic accompaniment sound generation is created based on the read out automatic accompaniment pattern and the determined code (S26), and the created accompaniment sound data is output to the tone generator 6 (S27).

On the other hand, if the flag is "1" in the process S21, it is determined that the key pressed detected in the process S19 is not the first key pressed by the accompaniment keyboard 3-1.
The process proceeds to 4 to perform the above-described processing S24 to processing S27.

With the above operation, when the automatic accompaniment mode is set by operating the MODE switch 4-2, the melody sound based on the key depression operation of the melody keyboard 3-2 is played by the chord input by the key depression of the accompaniment keyboard 3-1. Is started with automatic accompaniment based on.

If the key depression of the accompaniment keyboard 3-1 is not detected in the process S20, the process immediately proceeds to a process S28 described later. If the key depression of the melody keyboard 3-2 is not detected in the processing S17, the accompaniment keyboard 3-2 is immediately detected.
The process shifts to the process S19 for detecting the key depression of one.

Therefore, in this case, the melody sound is not generated, and only the automatic accompaniment is performed.

Subsequent to the processing S27, the CPU 1 determines whether or not the flag is “1” by referring to the segno flag SNF (S28). For example, if the segno flag SNF is set to “1” by the processing of the processing S4 and the processing S5, the chord input by pressing the key of the accompaniment keyboard 3-2 is stored in the RAM 5 (hereinafter, for convenience). Is determined to have been designated, and then the memory flag MRF
Is determined to be "1" (S29). If it is not "1", it is determined that the storage of the input code has been instructed and that the storage of the input code in the RAM 5 has not been started yet.
It is determined whether or not the accompaniment pattern read out from is the first beat of the measure (it is the timing to start storing) (S30). Then, if it is the first beat of the measure, it is determined that it is time to start storing the input code,
The memory flag MRF is set to "1" (S31). Next, preparations are made to store the input code in the RAM 5 (S32), and the input code input by pressing the key of the accompaniment keyboard 3-2 is stored in the RAM 5. The data is sequentially stored in a predetermined area (S33).

On the other hand, if it is not the first beat of the bar in the process 30, the process immediately proceeds to the process S34 described later. If the flag is "1" in the process S29, it is determined that the storage of the input code has already been started, and the process immediately proceeds to the process S33. Further, if the segno flag SNF is not "1" in the processing S28, it is determined that the storage of the input code is not instructed, and the process immediately proceeds to the processing S34 described later.

By the above operation, when the segno key 4-5 is turned on in the automatic accompaniment mode, the chord input by depressing a key of the accompaniment keyboard 3-2 is changed to the first bar after the segno key 4-5 is turned on. Are sequentially stored in the RAM 5 from the beat of.

Subsequent to the process S33, the CPU 1 determines whether or not the reproduction flag RPF is “1” (S34). If the flag RPF is not "1", it is determined that the automatic accompaniment by the input code stored in the RAM 5 has not been performed yet, and the DS flag DSF is referred to. "1" is determined (S3
Five). If the flag DSF is not "1", it is determined that the DS key 4-6 has not been operated in the automatic accompaniment mode, and the process immediately returns to the process S1.

According to the above operation, in the automatic accompaniment mode, after the SEGNO key 4-5 is turned on and the DS key 4-6 is not turned on yet, the codes input by pressing the keys of the accompaniment keyboard 3-2 are sequentially stored in the RAM 5. Go inside memorized.

As described above, in the automatic accompaniment mode, when the segno key 4-5 is turned on, the processes S19 to S33 are repeatedly performed until the DS key 4-6 is turned on.
Input codes are sequentially stored in the RAM 5.

During the execution of the above-mentioned storage operation, for example, as shown in FIG.
When the key 4-6 is turned on, the CPU 1 executes the processing S6.
To determine that the DS key 4-6 has been turned on,
"1" is set to the flag DSF (S7). And CPU1
Determines in step S35 that the DS flag DSF is set to "1", and determines that the DS key 4-6 has been operated. Then, the CPU 1 determines whether the automatic accompaniment pattern read from the ROM 2 is the first beat of a measure (the timing at which the storage of the input code is terminated and the automatic accompaniment based on the input code stored in the RAM 5 is started). Or not) is determined (S36). And if it is the first beat of a bar,
Segno flag SNF, memory flag MRF and DS flag DS
Set both F to “0” to start storing the input code,
The end instruction flag is released (S37), and the reproduction flag RPF
Is set to "1", and a flag is set to indicate that automatic accompaniment is being performed based on the input code stored in the RAM 5 (S38). Then, the final address of the input code stored in the RAM 5 is stored in a register (not shown) (S3
9) Then, the first address of the storage area of the input code in the RAM 5 is set in the address register (S4).
0). In the processing S36, if it is not the first beat of the bar,
The process immediately returns to step S1.

When the DS key 4-6 is turned on by the above operation, the input code is stored in the RAM 5 until the last beat of the bar after the DS key 4-6 is operated, and the segno key 4 is turned on.
The accompaniment pattern stored in the ROM 2 is read from the first beat of the bar at which the input code storage is started by operating -5, and the RAM 5 stored in the RAM 5 stored from the first beat of the bar is started. The input code is read from the beginning, and the automatic accompaniment with the accompaniment sound data created by the stored input code and the accompaniment pattern read out from the ROM 2 is started.

Subsequent to the process S40, the CPU 1 sequentially reads out the input codes stored in the RAM 5 in the order of storage (S41), and then reads out the automatic accompaniment pattern from the ROM 2 (S42). Accompaniment sound data is created from the pattern (S43), and the created accompaniment sound data is output to the tone generator 6 (S44).

Subsequent to the process S44, it is determined whether or not the TO-CODA flag TCF is "1" (S45). If the flag TCF is not "1", the input code stored in the RAM 5 is used. It is determined that the end of the automatic accompaniment has not been instructed yet, and the process immediately returns to the process S1.

Although not particularly shown, in the automatic accompaniment repetition processing based on the stored code, which is performed in the processing S41 to processing S44, the read address of the input code of the RAM 5 in the processing S41 is changed to the address for the address in the processing S39. If the address matches the address stored in the register (the last address of the input code stored in the RAM 5), the input code is read again from the top address of the input code storage area of the RAM 5 in the next processing S41.

With the above operation, the input codes stored in the input code storage area in the RAM 5 by the operation of the segno key 4-5 and the DS key 4-6 are repeatedly read sequentially from the beginning immediately after the storage of the input codes is completed. The automatic accompaniment based on the read chord is repeatedly performed.

When the automatic accompaniment is performed as described above, the TO-
When the CODA key 4-7 is turned on, the CPU 1 executes the above processing.
S8 detects the ON operation of the TO-CODA key 4-7, and
"1" is set to the flag TCF (S9). Then, in the process S45, it is determined that the TO-CODA flag TCF is set to “1”, and the address of the input code read in the process S41 is the same as the address stored in the address register in the process S39. It is determined whether they match, that is, whether the read address matches the last address of the input code storage area (S46). If they match, it is determined that the automatic accompaniment reproduction based on the last input code stored has been performed, and the reproduction flag RPF is set to “0” (S47), and the processing S1 is performed.
Return to

On the other hand, if the read address of the input code does not match the last address of the storage area of the input code in the RAM 5 in the process S46, the process immediately returns to the process S1.

With the above operation, the stored input code is repeatedly read out, and when the automatic accompaniment based on the read out code is played and the TO-CODA key 4-7 is operated, the RAM 5 After performing the accompaniment based on the last chord stored in the input chord storage area, the automatic accompaniment is terminated.

By the way, if the reproduction flag RPF is “1” in the above-mentioned processing S12, the CPU 1 determines that the automatic accompaniment based on the stored input code is currently performed, and presses all the keys of the keyboard 3. The key state is scanned (S13), and it is determined whether or not there is a depressed key (S14). If there is a depressed key, it outputs to the tone generator 6 tone information for generating a tone having a pitch corresponding to the depressed key.

By the above operation, in the automatic accompaniment mode, while the automatic accompaniment based on the stored input code is being performed, all keys of the keyboard 3 can be used as keys for melody performance.

When the CPU 1 determines in the process S11 that the automatic accompaniment flag JBF is not "1" (S3), the CPU 1 determines that the normal mode for performing a normal manual performance is selected, and immediately proceeds to the process S13. I do.

Then, thereafter, processing S12 to processing S15 → processing S34 → processing S35
Is performed, the process returns to the process S1.

With the above operation, the normal node can perform a manual performance using all the keys of the keyboard 3.

As described above, by selecting the automatic accompaniment mode by operating the mode changeover switch 4-2, two key operations of the segno key 4-5 and the DS key 4-6 are performed.
By pressing the accompaniment keyboard 3-2, a desired chord performance is automatically stored for a desired period, and a melody performance is performed using all keys of the keyboard 3 while performing automatic accompaniment based on the stored chord. Can be performed.

Also, at this time, the accompaniment is automatically performed, so that the operator for effect addition such as a bender can be easily operated while playing the melody. And TO-CODA key 4
By performing the operation of -7, the automatic accompaniment can be ended when desired, and the operation can immediately return to the accompaniment by pressing the key of the accompaniment keyboard 3-2.

In the above embodiment, the input codes are stored in measures. However, the present invention is not limited to this. The input codes may be stored immediately from the middle of the measure. The storage method of the input code can be variously set.

[Effects of the Invention] According to the automatic accompaniment apparatus of the present invention, a chord to be input by a simple operation is automatically stored from an arbitrary part of a performance to another arbitrary part during automatic accompaniment by chord input. Since the stored chord is repeatedly read from the beginning to the end of the storage at the same time as the end of the storage, and the accompaniment based on the read chord and the pre-stored accompaniment pattern is automatically performed, the same pattern is repeated many times. Saves you from having to enter the code. Also, when such an automatic performance device is applied to an electronic musical instrument, it is not necessary to input a chord for accompaniment during that time, and the player can concentrate on playing the melody and ad-lib, and can play it. The operation of an operator for adding an effect such as pitch bend can be easily performed during the performance.

[Brief description of the drawings]

FIG. 1 is an external view of one embodiment of the present invention, FIG. 2 is a system configuration diagram of the embodiment, FIG. 3 is a diagram for explaining the operation of the embodiment, and FIG. 4 is a performance control process performed by a CPU. It is a flowchart explaining. 1 ... CPU, 2 ... ROM, 3 ... Keyboard, 3-1 ... Accompaniment Keyboard, 3-2 ... Melody Keyboard, 4 ... Switch Group, 4-
1. Power switch 4-2 Mode switch 4-
3 ... Sync / fill-in key, 4-4 ... Rhythm start / stop key, 4-5 ... Segno key, 4-6
... DS key, 4-7 ... TO-CODA key, 5 ... ROM,
6 ... sound source section, 7 ... D / A conversion section, 8 ... amplifier, 9 ...
... speaker, 10 ... sound system.

Claims (4)

(57) [Scope of request for utility model registration] An accompaniment pattern storage means for storing an accompaniment pattern, a performance operator for inputting at least arbitrary chord information, and chord information input by the performance operator and stored in the accompaniment pattern storage means. In an automatic accompaniment device for performing automatic accompaniment based on an accompaniment pattern, first instruction means for instructing storage of chord information input by the performance operator, and chord information input by operation of the performance operator While the automatic accompaniment pattern is being performed based on the accompaniment pattern stored in the accompaniment pattern, when the instruction of the first instruction means is given, the chord information input by the performance operator is stored. Code information storage means to be started; second instruction means for instructing the code information storage means to stop storing the code information; When an instruction is given by the second instruction means while the chord information input by the playing operator is being stored, the storage of the code information in the chord information storage means is terminated and the storage is started. A first step of sequentially and repeatedly reading code information from a position to a position at which the recording is completed from the code information storage means, and performing automatic accompaniment based on the read code information and the accompaniment pattern from the accompaniment pattern storage means; An automatic accompaniment control means, a third instruction means, and an instruction issued by the third instruction means while performing the automatic accompaniment by the first automatic accompaniment control means. After reading the chord information from the means to the position where the storage is completed and sequentially performing the automatic accompaniment, the reading of the chord information is terminated and Automatic accompaniment apparatus characterized by having, a second automatic accompaniment control means for performing an automatic accompaniment based on the accompaniment pattern from the code information and the accompaniment pattern storage means which is input by the performance operators. 2. An automatic accompaniment pattern read out from said accompaniment pattern storage means, when said chord information storage means is instructed by said first instruction means, is the performance timing at the beginning of the beat of the next measure. At this point, storage of chord information input by the performance operator is started, and when an instruction is given by the second instruction means, the accompaniment pattern read out from the accompaniment pattern storage means is a beat at the end of the next bar. 2. The automatic accompaniment apparatus according to claim 1, wherein the storage of the chord information input by the performance operator ends when the performance timing comes. 3. An accompaniment pattern storage means for storing an accompaniment pattern, a performance operator for inputting at least arbitrary chord information and pitch information, a chord information input by the performance operator and the accompaniment pattern storage means. First, an accompaniment signal is created based on the accompaniment pattern stored in
An electronic musical instrument comprising: an accompaniment signal creating means; and a pitch signal creating means for creating a pitch signal based on pitch information input by the performance operator. A first instructing means for instructing the storage of, and performing the automatic accompaniment based on the chord information input by the operation of the performance operator and the accompaniment pattern stored in the accompaniment pattern. Code information storage means for starting storage of chord information input by the performance operator when instructed by the first instruction means; and instructing the chord information storage means to stop storing the chord information. A second instructing means for performing, when an instruction is given by the second instructing means while storing chord information inputted by the performance operator, the chord information storing means; The storage of the code information in the row is ended, and the code information from the position where the storage is started to the position where the recording is ended is sequentially and repeatedly read from the code information storage means, and the read code information and the accompaniment are read out. A second accompaniment signal creating unit that creates an accompaniment signal based on the accompaniment pattern from the pattern storage unit; a third instruction unit; and the first automatic accompaniment control unit. When an instruction is given by the third instruction means, the code information is sequentially read from the code information storage means to a position at which storage is completed to create an accompaniment signal, and then the reading of the code information is terminated. The chord information input by the performance operator to the first accompaniment signal creating means and the accompaniment pattern from the accompaniment pattern storage means. Electronic musical instrument, characterized in that it comprises a control means for controlling so as to create the accompaniment signal based on over emissions, and. 4. An automatic accompaniment pattern read out from said accompaniment pattern storage means, when said chord information storage means is instructed by said first instruction means, is a performance timing at the beginning of a beat of the next measure. At this point, storage of chord information input by the performance operator is started, and when an instruction is given by the second instruction means, the accompaniment pattern read out from the accompaniment pattern storage means is a beat at the end of the next bar. 4. The electronic musical instrument according to claim 3, wherein the storage of the chord information input by the performance operator ends at a performance timing.