JP3434403B2 - Automatic accompaniment device for electronic musical instruments - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to an automatic accompaniment.
Reads the tone for each part based on the data
By switching the code turning table
An automatic accompaniment with the optimal tone according to the role of the part
The present invention relates to an automatic accompaniment device for a child musical instrument. 2. Description of the Related Art Electronic musical instruments having an automatic accompaniment function are widely used.
Has been reached. However, automatic accompaniment of conventional electronic musical instruments
The device plays songs such as rock and waltz for each rhythm style,
Pitch data (key number) indicating the pitch
Data (step), volume data (velocity),
And reference accompaniment data such as sound duration data (gate).
The sound was switched. [0003] Also, pronunciation data for producing accompaniment sounds
Is the reference accompaniment data, major (maj), and my
Chord types (chord type) such as
Chord information consisting of roots (chord roots) such as C, D, and E
And generate accompaniment data for producing accompaniment sounds.
I was [0004] The progress of music is based on these information.
Automatic accompaniment while changing accompaniment chords along with lines
Was controlled. Note that these accompaniment data are
Often created based on a jar. [0005] Such a conventional automatic accompaniment device control
The following two methods for inputting code information
These two methods are combined for each part.
It is often used. The first method is a note shift table (Not
e Shift Table) to determine the code
Search for pitch conversion data corresponding to the
Shift the pitch of the pronunciation data up and down
is there. Another method is to generate a chord that is pronounced during automatic accompaniment.
Pre-stored in memory as a method to keep the range within a certain range
Chord Inversion Table
Reference to the pitch being pronounced,
This is a method for selectively selecting data. Also, when creating an automatic accompaniment pattern,
Means drum, bass, chord 1, chord 2, ...
It is created by dividing it into multiple parts.
Patterns include chord-centered parts and single notes (melody)
Since there is a mind part, the best way to turn the chord for each part
The law has been created to choose. [0009] Also, among high-end models, the player himself
Pattern creation that can create data used for automatic accompaniment
Some have devices. [0010] However, the code conversion of a conventional electronic musical instrument is not possible.
The single time table is composed mainly of chords of keyboard instruments.
Instruments other than keyboard instruments, such as chords
One that has multiple turntables based on
Even if you make the sound of the original guitar sound like a chord of a keyboard instrument
There was a drawback that it sounded like a seam. [0011] The range of the chord of the keyboard instrument is also
Most are composed of one octave range, but guitars
When playing chords on stringed instruments such as
They are often used. However, conventional electronic musical instruments
In this case, a code that takes advantage of the characteristics of
There was no turn table. Therefore, a conventional automatic accompaniment device for an electronic musical instrument
For example, guitar, steel guitar, mandolin, three
Different from keyboard instruments such as string instruments such as taste line and harmonica
To accompany a musical instrument part played in a chord configuration
There was a problem that it was not suitable. SUMMARY OF THE INVENTION The present invention is directed to such a situation.
Appreciated, corresponding to various types of musical instruments
It has the characteristics of chords, and for each part of the automatic accompaniment
Automatically turns the optimal chord turning table according to the tone of the instrument
Provide an electronic musical instrument automatic accompaniment device that can be selected and played
That is the task. Another problem is that an electronic musical instrument can respond to a timbre.
Pattern creation function, allowing the performer to create
Arbitrary selection of the desired code turning table for each pattern
Automatic musical accompaniment devices that can be assigned
Offers more creative automatic accompaniment that takes advantage of the performer's personality
It is possible to carry out. [0015] The automatic accompaniment apparatus of the present invention.
Input the accompaniment pattern data into the chord
Of musical instruments that output musical data and perform automatic accompaniment
In the accompaniment device, multiple tones corresponding to each tone or each tone group
Turning table storage means for storing a code turning table
And a plurality of parts.
Data storage for storing accompaniment pattern data including data
Means, and the plurality of chords according to the tone designation data.
A table referenced to specify one of the turn tables
Table specification data storage method for storing table specification data
And reading the accompaniment data storage means.
Based on the tone specification data of the part,
The code turn table is determined with reference to the
Enter the accompaniment pattern data in the chord turning table
Control means for controlling the output of musical sound data by
When playing the automatic accompaniment, the tone specified for each part
Or change to chord inversion corresponding to tone group automatically
It is configured to be obtained. According to the first invention, in order to achieve the above object, an automatic
Optimum according to the tone of each part as the chord progression of the accompaniment
The chord turning table is automatically selected and played.
It is. Therefore, the automatic accompaniment device of the present invention
Record multiple chord turn tables corresponding to colors or tone groups
Turning table storage means 25 to remember from multiple parts
And an accompaniment pattern containing tone specification data for each part
Accompaniment data storage means 24 for storing data
I have. Further, the main body of the electronic musical instrument is provided for accompaniment during automatic accompaniment.
From the performance data, read data indicating the tone of the next sound
And specify a table based on the read data
Next, the tone should be read out with reference to the data storage means 26.
The code turning table is determined.
Read the accompaniment data of the desired tone from the
It has a control means 22 for sending to the circuit 8. Thus, each instrument has its own musical instrument.
Automatic accompaniment with the optimal tone that matches the characteristics of
An excellent automatic accompaniment device for an electronic musical instrument can be provided. The second invention has a pattern creation mode.
When a player creates a pattern,
To select and specify the code turning table to be
This is to add a turn creation mode. For this reason, the switching means 21 has a normal performance mode.
Mode and automatic accompaniment mode,
In addition, a pattern creation mode is added to accompany the specified part
At the time of pattern creation, independent of the tone of the part,
Specified data that specifies one of the number of code turn tables
Data to the table designation data storage means 28.
Different for each part in automatic accompaniment by the control means 22
The code inversion type can be specified. Thus, the player creates a pattern.
When assigning an arbitrary code turn table for each part
Musician's musical sense from multiple perspectives
Expressive and more creative performances are possible. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG.
First embodiment of the present invention that can be changed to an optimum tone for each music
Overall structure of an electronic musical instrument to which the automatic accompaniment device according to the example is applied.
FIG. 3 is a block diagram schematically showing the configuration. In FIG. 1, reference numeral 1 denotes a CPU,
According to the control program stored in the
It controls each section of the electronic musical instrument. The control unit 22 provided in the CPU 1 has a CPU
The control unit 2 is realized by software of
2 is the auto-accompaniment pattern memory 24
Data specifying the tone to be pronounced next from the data for moving accompaniment
Read. Next, based on the read tone color designation data,
Next, referring to the table designation memory 26, the next part
Code turning table that reads out the sound data generated by the keyboard
(Hereinafter referred to as "inversion table")
And reads a predetermined chord from the inversion table.
Then, it is sent to the tone signal generating circuit 8. The ROM 2 stores a program for operating the CPU 1.
In addition to the program memory unit 23 storing the program,
Playing pattern memory 24 and other various fixed data.
An area to remember is provided. Program memo provided in ROM 2
Re 23 stores an electronic musical instrument control program.
is there. The automatic accompaniment pattern memory 24 has a basic pattern
Pattern, fill-in pattern, ending pattern, etc.
Accompaniment pattern data is divided into predetermined bars for each rhythm
These data are stored in piano,
It is provided for each part such as trings, bass, etc.
You. The inversion table memory 25 stores
Multiple inversion templates provided for each tone or tone group
Table, each inversion
The expansion table contains the development data corresponding to the code name for each rotation type.
Data. Details will be described later with reference to FIG.
You. Tone as table designation data storage means
The control unit 22 stores the / inversion designation table 26
Based on the tone data read from the dynamic accompaniment pattern data
Inversion table from which code information should be read
Table that stores the data that is referenced when determining the file
It is. Details will be described later with reference to FIG. The RAM 3 operates the CPU 1 described above.
In addition to the area for temporarily storing programs
Work area, various registers for controlling the electronic musical instrument
Data, counters, flags, and the like. Note that the tone
Transferred data such as data and various fixed data
An area for temporarily storing data is provided. The RAM 3 stores note data.
A note name buffer 27 for changing to the inverted form of the chord to remember is provided.
Have been. Tone name buffer 2 for changing to the chord inversion type
7 will be described later with reference to FIG. Reference numeral 4 denotes a keyboard, which includes a plurality of keys and these keys.
Key switch that opens and closes in response to key press / release operations
Key switch to detect the open / closed state of these key switches.
It includes a fork circuit and the like. Key scan times of this keyboard 4
The signal indicating the key pressed / released state detected on the road
Interface 5. The keyboard interface 5 is connected to the keyboard 4 and the system.
It mediates transmission and reception of signals to and from the bus. keyboard
The signal indicating the key depressed / released state sent from No. 4 is
CPU via keyboard interface 5 and system bus
1 and a predetermined process is performed. An operation panel 6 controls each of the electronic musical instruments.
A seed switch, a display, and the like are provided. This operation panel
The panel 6 is a panel panel that detects on / off of various switches.
Including a can circuit, the detected switch ON / OFF
The signal indicating the OFF state is sent to the panel interface 7.
It is. Automatic accompaniment provided on operation panel 6
The switch 21 is a hand-playing performance mode by a normal player.
And a switch for switching between automatic accompaniment mode. The panel interface 7 includes an operation panel 6
Mediates the transmission and reception of signals between the
You. ON / OFF of the switch sent from the operation panel 6
The signal indicating the off state is transmitted through the panel interface 7 and
Being sent to CPU1 via the system bus
I have. The tone signal generating circuit 8 outputs a signal from the CPU 1
Tone waveform data and envelope corresponding to the data
From the tone waveform memory 9 and read out the
Adds an envelope to the musical sound waveform data
And output it. The tone signal output by the tone signal generator 8
Is converted into an analog signal by the D / A converter 10 and the amplifier
11 is supplied. Note that the tone signal generation circuit 8 has a waveform
Waveform memory 9 for storing data and envelope data
It is connected. The amplifier 11 is easily operated through the D / A converter 10.
The analog tone signal supplied from the tone signal generation circuit 8 is stored in the
Amplify with a constant gain. The output of this amplifier 11
Are supplied to the speaker 12. The speaker 12 was sent from the amplifier 11
Convert analog music signals as electrical signals to acoustic signals
Things. That is, music is generated according to the generated tone signal.
It emits sound. Next, in the first embodiment having the above configuration,
2 and 3 are flowcharts for the overall operation.
This will be described with reference to FIG. When the power is turned on, an initialization process is first performed.
This is done (step S11). This initialization process
Set the internal state of the signal generation circuit 8 to the initial state and turn on the power.
It prevents unnecessary sound from being generated at the time of
Clear work area, register, flag, sound
This is a process for initializing data such as volume and timbre. Next, a keyboard / panel scanning process is performed.
(Step S12). With this keyboard / panel scanning process
Is the key of the keyboard 4 captured by the keyboard scan.
Key / key release data and the panel key of the operation panel 6
Indicates the on / off status of each switch detected by the scan circuit
Signal from the keyboard interface 5 or panel interface
Sent to the CPU 1 via the Next, the keyboard / panel switch event processing
Is performed (step S13). That is, last time, the keyboard
ON / OFF of each switch etc. taken from 4 or operation panel 6
OFF state and ON / OFF of each switch etc.
State is compared with the
When an event manager is set, only the corresponding bit is set.
Is created. Next, it is checked whether or not the automatic accompaniment mode is set.
(Step S14). This is an automatic accompaniment switch 2
Check the flag for the setting status of No. 1 and confirm it.
If the auto accompaniment mode switch is off,
Since no automatic accompaniment processing of the light is necessary,
The flow branches to "other processing" of S34. On the other hand, in step S14, the automatic accompaniment switch
If 21 is on, then the automatic accompaniment (RUN) is ongoing
Is checked (step S15). this is
Check the status of the automatic accompaniment function.
Confirmed by examining. And during the automatic accompaniment
If there is no need for automatic accompaniment processing,
The flow branches to "other processing" in S34. On the other hand, in step S15, the automatic accompaniment (RU
N) If it is during, whether or not step processing has been completed subsequently
Is checked (step S16). This is during automatic accompaniment
This is a process for determining whether the end of the measure has been reached.
Responds to whether the timer step count has been performed.
Then, it is determined whether or not the step processing has been completed. As a result, when step processing has not been completed
Has not reached the end of the bar yet, so step S34
Branch to “Other processing”. On the other hand, here, it is determined that the step processing has been completed.
If this is the case, the end of the measure has been reached.
The flag indicating that the process has been completed is reset (step
S17) Then, when the sounding of the sounding channel is continued
The gate counter that counts the interval is decremented.
(Step S18). Subsequently, whether the gate count value is 0 or not
Is checked (step S19). This is currently pronounced
This is a process to check whether the duration of the sound of
When the count value is 0, the sound of the channel is stopped.
(Step S20).
Proceed to step S21. On the other hand, if the count value is not 0,
And read the next code data (step
S21), and further recorded in the read code data.
The step data that is stored and the step value of the timer
It is checked whether or not they match (step S22). one
If not, it is not time to update the code
Therefore, skip step S23 and proceed to step S24.
No. On the other hand, the recorded code data
The step data that is stored and the step value of the timer
If you do, update the code data (inversion process
(Step S23). Next, from the automatic accompaniment pattern memory 24
Automatic accompaniment pattern data (step / key number /
(For example, auto time) is performed (step S2).
4). Operation of code update (inversion processing)
Will be described later with reference to FIGS. Subsequently, the updated code data is
Step data recorded and timer steps
It is checked whether the values match (step S2).
5). If they do not match, the program change
Since it is not imming, "other processing" of step S34
Branch. On the other hand, the code data
Step data recorded and timer step value
If they match, the code
Whether program change is instructed based on data
It is checked whether it is (Step S26). When a program change is instructed
Changes the timbre (step S27), and further changes the timbre /
Referring to the inversion designation table 26,
Enter the number of the corresponding inversion table
Is set in the table specification buffer (step S2).
8), the flow branches to "other processing" in step S34. On the other hand, if a program change is instructed
If not, then read the flag and turn around the code
It is checked whether the method is a note shift (step
S29). When note-turning is instructed
Refers to the note name buffer 27 for changing to the chord inversion type.
The note data that corresponds to the chord
After the shift conversion (step S30), the process proceeds to step S32.
Advance sound generation processing is performed. On the other hand, the method of turning is a note shift turning method.
If not, change to inversion code inverted type.
Therefore, the data in the inversion table specification buffer
And read the sound read from the inversion table
Read the note name of the buffer corresponding to the high data (step
Step S31), the route is added. Next, a sound generation process is performed (step
S32). That is, the control unit 22 performs step S30 and step S30.
The accompaniment data read in step S31 is
It is sent to the road 8 to make it sound. Then, the count of the gate counter starts.
Is performed (step S33). That is, the sounding channel
Set the gate time in the gate counter and count
It starts, and "other processing" (step S34).
Is performed, the process returns to step S12, and thereafter, the same processing is performed.
The process is repeated. The “other processing” mentioned here includes:
MIDI related processing, switch event processing, keyboard
Processing according to switch settings detected in vent processing, etc.
For example, tone change processing, volume change processing, rhythm selection processing, etc.
Processing of switch events for
It is not limited. Next, in step S16 of the main routine,
Diagram of timer processing operation related to step processing
4 will be described. In the timer process, first, the sounding timing
Incrementing the counting step
(Step S41), then step at the end of the bar
It is determined whether or not it has reached (step S4)
2). When the step has reached the end of the bar
To return to the original step (that is, the beginning of the measure).
Step S43), and proceed to step S44. On the other hand, step S
If the end of the measure has not been reached in the judgment of 42,
Skips step S43 and proceeds to step S44.
No. Next, the step processing completed flag is set.
(Step S44), the subroutine ends, and
Return to the main routine and allow step processing in the main routine.
Yes. Next, step S2 of the above main routine
3 and FIG. 6 for the operation of the code update process 3
I will explain while. In the code update process, first, the code
Root and code type buffers are updated
(Step S51). This means that the next sound
This is the process of setting in the buffer,
Data read from the keyboard or input by keyboard operation
Updated based on data. Next, the table of the inversion table
The initial value of the variable k that stores the file number is set (the
Step S52), and further, the value of the variable k is
Is less than the total number L of inversion tables in
It is checked whether it is (Step S53). This is because the table corresponding to the value of the variable k is
This is a process to check whether or not there is any data.
If the value is larger than the value of the number L, the version
Since there is no stable table, the process ends and the main routine
Return to On the other hand, when k ≦ L, the value is designated by the value of k.
Inversion table (i _n )
The data of the highest tone is read (step S5).
4). Next, the highest sound of each of the read inverted shapes is obtained.
The route is added (step S55), and the highest sound added is added.
It is checked whether or not the value of
Step S56). As a result, if they are not equal,
Proceed to step S61. On the other hand, the route is added in step S55.
If the value of the highest note that is played is equal to the value of the reference highest note,
Initial value is 0 in the variable i indicating the inversion type in the inversion table.
Is set (step S57), and then the set i
The value indicates the total number of inversions in the inversion table.
It is checked whether it is smaller than the value n (step S5).
8). As a result, when the value of i is larger than the value of n
Indicates that there is no more inverted form in the table
Then, the process proceeds to step S61. On the other hand, if i ≦ n, the table
Since there are other turning shapes in the bull,
Is equal to the value of the highest note in the inverted form (i)
It is checked whether it is (Step S59). As a result, if they are not equal, the value of the variable i
Is incremented (step S60), and the next inversion
Is set, and the process returns to step S58, and the same processing is performed for all
It repeats about the inversion type. On the other hand, in step S59, the previous highest
If the sound is equal to the highest pitch of the inverted shape,
The process branches to S68. Thus, the input selected by the value of the variable k
From the all inversions in the version table,
The highest note equal to the treble is set. On the other hand, the above steps S56 to S6
At 0, the highest note that equals the reference highest note to the previous highest note
If not, then go to the highest
The sound is searched from each inverted data group. For this reason, first, initial values of each variable are set.
Now (step S61). That is, 0 is assigned to the variables i and j.
Set to 0x7f (hex value, maximum value) for variable d
Is set. Next, it is checked whether or not j ≦ n.
(Step S62). If j> n, the k-th IN
There is no inverted shape data to compare in the version table
Then, the process proceeds to step S68. On the other hand, when j ≦ n, the reference maximum tone and the
The absolute value of the difference between the highest tones of the inverted form (j) is determined (step S
63) Then, whether or not the obtained value c is smaller than d
Is checked (step S64). As a result, the value of c is
If it is larger than d, the process proceeds to step S67. On the other hand, if d> c in step S64
Updates the value of the variable d to the value of c (step S65),
Substitute the value of the inverted j number j into a variable i (step S
66), and proceed to step S67. Next, the value of j is incremented (the
Step S67), returning to the step S62, and performing the same processing thereafter.
The process is repeated until there is no corresponding inverted data.
The maximum sound value of each inverted form in the inversion table
That is, the inverted type data number i closest to the reference value is obtained.
You. Next, the above steps S62 to S
The code of the inverted type data closest to the reference value obtained in step 67
Reads the table of type number (i) (step
Step S68), and then add a chord route (step S68).
S69). Further, a note name buffer for changing to a chord reversal type is provided.
File (FIG. 8) (step S70).
The value of the number k is incremented (step S71), and
Returning to step S53, the same is applied to all tables.
Is repeated. Thus, the same sound as the reference highest sound or the highest sound can be obtained.
Sounds that are similar in tone can be pronounced. Next, inversion is performed with reference to FIG.
The configuration of the table 25 will be described. The inversion table stores each tone or
Separate tables 0, 1,... N are provided for each tone group
Each turning type table, each turning type
(I _n ), And each inversion type (i _n In the parentheses)
For example, they are classified for each configuration such as C, E, and G. Further, root sounds such as C, E, G, etc.
For example, data for each item classified by
For example, raise a semitone
Or data that lowers the pitch by a semitone, etc.
According to the / inversion table designation table 26,
Which table to use is specified. FIG. 8 stores the melody part of the automatic accompaniment.
The structure of the note name buffer for changing to the inverted
FIG. As shown in the figure, the note name for changing to the chord inversion
In the buffer 27, buffers for each part are provided for the number of parts.
Have been killed. Each part is, for example, C, E, G, B, etc.
A storage area for each route is provided for each part.
In each area, the route is added
John data is stored. In addition, the cord inversion type
The tone buffer 27 for changing to
The data obtained by turning the note shift code of step S30 is
It is memorized. FIG. 9 shows a sound storing a chord portion of an automatic accompaniment.
Structure of the color / inversion table designation data memory 26
FIG. The tone / inversion tape
For example, 0-127 and the number of timbres
Storage area is provided. The tone / inversion table designation data
Each storage area of the data memory 26 includes, for example, 0 (keyboard),
Data that specifies the tone of an instrument such as 1 (guitar)
It is stored in the main routine.
The data changed to the inversion code inverted type in step S31
Data is stored. Next, before the player starts playing, each part
A second embodiment capable of assigning a pattern will be described.
I do. In the description of this embodiment, the first embodiment
The explanation of the same parts as the example is omitted, and the differences
I will explain only. FIG. 10 is a diagram showing a third example in which a player can set a pattern.
It is a schematic block diagram which shows the whole structure of 2nd Example. Figure
As described above, in the present embodiment, the pattern
Is provided. The setting section 29 allows the player to perform each
Parts that function when performing pattern assignment for each part
It is. That is, the setting section 29 is provided with an automatic accompaniment switch.
21 has been set to the pattern assignment mode
Then, switch the keyboard to the input means of pattern assignment
The keyed data into the inversion table
Control to enable writing to the constant data memory 28
It is realized by a program. In the first embodiment, the memory provided on the ROM 2 is provided.
Data of specified tone / inversion table
Inversion table specification data
The memory 28 is provided on the RAM 3 and can be read / written
It has become. As a result, the key input data is
Stored in the inversion table designation data memory 28
During the automatic accompaniment, the memory 28
The data specifying the inversion table 25 is read from
It is played out. The first accompaniment switch 21
In addition to the normal performance mode and automatic accompaniment mode of the
A turn assignment mode has been added. This allows
When the automatic accompaniment switch 21 is
When the control unit detects that the
22 allows the setting unit 29 to function and allows pattern assignment
To The inversion table designation data
The memory 28 will be described later with reference to FIG. Next, referring to FIGS. 11 and 12,
The operation of the second embodiment will be described. When the power is turned on, first, an initialization process is performed.
This is done (step S81). This initialization process
Set the internal state of the signal generation circuit 8 to the initial state and turn on the power.
It prevents unnecessary sound from being generated at the time of
Clear work area, register, flag, sound
This is a process for initializing data such as volume and timbre. Next, keyboard scan processing is performed.
(Step S82). In this keyboard scanning process, the keyboard
Key press / release of key on keyboard 4 captured by scanning
Data on the CP via the keyboard interface 5
It is taken in by U1. Next, panel scan processing is performed.
(Step S83). In this panel scan process,
Each switch detected by the panel scan circuit of the panel 6
The signal indicating the on / off status of the switch is
The data is taken into the CPU 1 through the CPU 7. Next, the keyboard / panel switch event processing
The processing is performed (step S84). And last time, the key
Switches such as switches taken from the panel 4 and the operation panel 6
ON / OFF state and ON of each switch etc. taken in this time
Is compared with the on / off state to determine that the event is an on event.
If the event is interrupted, only the corresponding bit is set.
Map is created. Next, it is checked whether or not the automatic accompaniment mode is set.
Is performed (step S85). It checks the flags and automatically
This is to check the status of the accompaniment switch.
If the accompaniment mode switch is off, step S102
Branch to On the other hand, in step S85, the automatic accompaniment switch
Is on, then the current automatic accompaniment (RUN)
It is checked whether or not it is (step S86). This is automatic
Check the accompaniment operation status and check the flag
It is confirmed by And if it's not playing,
Since the automatic accompaniment processing of the invention is not necessary,
The flow branches to "other processing" in S106. On the other hand, in step S86, automatic accompaniment (RU
N) If it is during, whether or not step processing has been completed subsequently
Is checked (step S87). This is the measure end
This is a process to check whether the timer has been reached.
Step processing according to whether or not
It is determined whether or not it has been completed. As a result, when step processing has not been completed
Has not reached the end of the bar yet, so step S10
The process branches to “Other processing” of No. 6. On the other hand, here, it is determined that the step processing has been completed.
If this is the case, the end of the measure has been reached and the step
The flag indicating that the process has been completed is reset (step
S88) Then, the next code data is read.
(Step S89). Subsequently, the recorded code data is recorded.
Step data and the timer step value
It is checked whether they match (step S90).
If they do not match, it is not time to update the code.
Skip step S91 and go to step S92
move on. On the other hand, the recorded code data is
The step data that is stored and the step value of the timer
If you do, update the code data (inversion process
(Step S91), and then the memory
Accompaniment pattern data (key number, step, gate
Is read (step S92). Next, the continuation of the sounding of the sounding channel
The gate counter that counts time decrements
Step (step S93), and further, the gate count value
Is checked to see if it is 0 (step S94). This is because the sounding time of the currently sounding sound ends.
This is a process to check if the count value is 0.
Since the sound of this channel has ended,
(Step S95) The process proceeds to step S96. On the other hand, if the gate count value is 0,
Since the channel is not sounding,
Proceed to step S96. Next, the updated code data
Step data recorded and timer steps
It is checked whether the values match (step S9).
6). If they do not match, the timing of shift turning
Therefore, the processing is divided into "other processing" in step S106.
Diverge. On the other hand, the code data
Step data recorded and timer step value
If they match, then the code
Whether or not a note shift turn is instructed based on the data
Is checked (step S97). This is because the flag is read and the turning method is
This is a process for checking whether or not a note shift has occurred.
If a turn is instructed, the read pitch data
Note-shift conversion (step
S98). On the other hand, the method of turning is a note shift turning method.
If not, change to inversion code inverted type.
Therefore, the buffer sound corresponding to the read pitch data
Read the name and add the route (step S
99). Next, a sound generation process is performed (step
S100). That is, the control unit 22 performs step S98,
The accompaniment data rotated in step S99 is used to generate a tone signal.
It is sent to the road 8 to make it sound. Then, the gate counter starts counting.
(Step S101). That is, the sound
Set the gate time in the gate counter of the
The counting is started, and the process proceeds to step S106. Further, "other processing" (step S10)
After performing 6), the process returns to step S82, and so on.
Process is repeated. “Other processing” is described above.
In the same way as for
And switch events detected during keyboard event processing, etc.
Processing, such as tone change processing, volume change processing, rhythm
Various processing such as switch event processing for selection processing
It includes the reasoning. On the other hand, the automatic accompaniment mode
Branch to step S102
Then, in step S102, the pattern make mode
Is checked (step S102). Patter
Normal play mode when not in make-up mode
Therefore, the processing directly proceeds to “other processing” in step S106.
Branch. On the other hand, in the pattern make mode,
It is checked whether the turn is being made (step S
103). If a pattern is being made, insert a keyboard, etc.
Inversion table for data input from force means
Write to the designated data memory 28 (step S10
4), proceed to “Other processing” of step S106. On the other hand, in step S103, the pattern
If it's not in the middle, I'm going to create a pattern
Then, a creation method, a turning method, and the like are set (step S10).
5), and proceed to “Other processing” of step S106. It should be noted that the creation condition / inversion in step S105
In the setting of the round method, which inversion table is used
Specification, data created previously, or stored in ROM.
Create patterns by copying accompaniment data
Processing such as facilitation is also performed. As described above, the first embodiment of the second embodiment.
The main difference is that the pattern is created on the automatic accompaniment switch.
Mode is provided in the ROM 2 in the first embodiment.
The specified tone / inversion table specification data
A memory 26 is provided in the RAM 3 to enable read / write
Has become. When a pattern is created, the keyboard 4 is input.
In the first embodiment, in step S28, the tone
Routine selecting an inversion table based on
Is no longer necessary, and the performer manually
Table is selected. The code update (in step S91)
The operation of the version processing is described in the first embodiment (FIG.
5, the description is omitted. Next, inversion table designation data
The configuration of the memory 28 will be described. In addition, Inverge
Changed to sound table and chord reversion type buffer 2
7 is the same as that of the first embodiment,
Description is omitted. FIG. 13 shows a case where the player uses a keyboard or the like to play a desired pattern.
Inversion table specification data that can write turns
FIG. 2 is a diagram illustrating a configuration of a data memory 28. The invar
The John table designation data memory 28 stores
A storage area is provided. The inversion table designation data
Each storage area of the memory 28 is, for example, 0 (keyboard) or 1
(Guitars)
This is the area to be stored.
When the make mode is set, for example,
The obtained data is stored in the area. Then, between the automatic accompaniment data and the automatic accompaniment data
The read code signal is stored in the inversion table.
Based on the data stored in the designated data memory 28
The inversion table is selected. Therefore, playing
Can freely make patterns. As described above, according to the present invention, the performance is automatically
Switch the accompaniment switch to the pattern make mode, and
Simple operation of inputting data from the board, automatically free
Create accompaniment patterns. As described in detail above, according to the present invention,
When performing automatic accompaniment, each instrument
Automatically change by changing to the optimal code reversal type that matches the characteristics of
Performance, and automatically accompany an excellent electronic musical instrument.
A playing device can be provided. Also, providing a pattern make mode
When a player creates a pattern,
Any inversion table can be assigned to
Noh, you can freely express the sense of the performer,
Performance is possible.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic block diagram illustrating an overall configuration of a first embodiment of the present invention. FIG. 2 is a main flowchart for explaining the overall operation of the first embodiment of the present invention. FIG. 3 is a main flowchart (continued) illustrating the overall operation of the first embodiment of the present invention. FIG. 4 is a flowchart illustrating an operation of a timer process. FIG. 5 is a flowchart illustrating an operation of a code update process according to the first embodiment. FIG. 6 is a flowchart (continued) illustrating the operation of the code update process according to the first embodiment; FIG. 7 is a diagram illustrating a configuration of an inversion table. FIG. 8 is a diagram illustrating the configuration of a note name buffer for changing to a chord reversal type. FIG. 9 is a diagram illustrating a configuration of a tone color / inversion table designation data storage unit. FIG. 10 is a schematic block diagram illustrating the overall configuration of a second embodiment of the present invention. FIG. 11 is a main flowchart for explaining the overall operation of the second embodiment of the present invention. FIG. 12 is a main flowchart (continued) illustrating the overall operation of the second embodiment of the present invention. FIG. 13 is a diagram illustrating a configuration of an inversion table designation data memory according to the second embodiment. [Description of Signs] 1 CPU 2 ROM 3 RAM 4 Keyboard (input means) 5 Keyboard interface 6 Operation panel 7 Panel interface 8 Musical sound signal generation circuit 9 Waveform memory 10 D / A converter 11 Amplifier 12 Speaker 21 Automatic accompaniment switch (switching) Means) 22 control unit (control means) 23 program memory 24 automatic accompaniment pattern data memory 25 inversion table memory (turn table storage means) 26 timbre / inversion table specification data memory (table specification data storage means) 27 to code reversal type Change sound name buffer 28 inversion table designation data memory (table designation data storage means) 29 setting section (setting means)

Claims (1)

(57) [Claims 1] In an automatic accompaniment apparatus of an electronic musical instrument for performing automatic accompaniment by inputting accompaniment pattern data to a chord turning table and outputting musical tone data, each tone or each tone color group Turn table storage means for storing a plurality of corresponding chord turn tables; accompaniment data storage means for storing accompaniment pattern data comprising a plurality of parts and including tone designation data for each part; Table designation data storage means for storing table designation data referred to for designating any of the plurality of chord turning tables; and when reading out the accompaniment data storage means, the table based on the tone color designation data of each part. The chord turning table is determined with reference to the designated data, and the accompaniment pattern is stored in the determined chord turning table. Control means for inputting the tone data and outputting the tone data, and automatically changing to a chord inversion corresponding to the tone or tone group specified for each part during automatic accompaniment playback. An automatic accompaniment device for an electronic musical instrument, characterized by being obtained in