JP2536272B2 - Electronic musical instrument - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to an electronic musical instrument that automatically generates a turning chord obtained by turning various fundamental chords.

[Prior art]

Conventionally, this type of device is, for example, as disclosed in Japanese Utility Model Publication No. 1-25994, root data representing a root of a chord, type data representing a chord type such as a major or minor, and a chord of a chord. Chord data consisting of turn data representing a turn type is stored in advance in the memory over time,
The stored chord data is sequentially read out, and a plurality of pitch information representing each chord constituent tone of the inversion chord is formed based on the read out chord data, and the pitch represented by each pitch information is calculated. The inversion chord is generated by forming and outputting a plurality of musical tone signals that it has.

[Problems to be Solved by the Invention]

However, in the above-mentioned conventional device, only the inversion chords that are stored in advance in the memory can be produced, and the inversion state of the sequentially produced chords cannot be changed variously. The music becomes monotonous. The present invention has been made to solve the above problems, and its purpose is to enable various playing music to be enjoyed by making it possible to change the turning state of chords during chord playing. The purpose is to provide the electronic musical instrument.

[Means for Solving the Problems]

In order to achieve the above object, the structural feature of the invention according to claim 1 is that a performance operator having a chord specifying function for specifying a chord and a turn type specifying function for specifying a turn type of the chord (10 ), And a selection operator (29) for selectively selecting the chord designating function and the inversion type designating function of the performance operator, and chord information generating means for automatically generating chord information representing a chord over time. (69, 609, 610, 612, 613), and when the turning type designating function of the performance operator is selected by the selection operator, the chord represented by the chord information automatically generated by the chord information generation means is the performance. Chord information forming means (502, 504, 506) for forming chord information representing a turning chord turned into a turn type designated by an operator.
To 518), and when the chord specifying function of the performance operator is selected by the selection operator, a tone signal corresponding to the chord specified by the performance operator is formed, and the performance operation is performed by the selection operator. And a tone signal forming means (41, 42, 307, 308, 519) for forming a tone signal corresponding to the chord information formed by the chord information forming means when the child rotation type designating function is selected. The structural feature of the invention according to claim 2 is
Instead of the music signal forming means, when the chord designating function of the performance operator is selected by the selection operator, chord information representing a chord designated by the performance operator is stored over time, and the selection is made. Memory means (69, 310, 315) for storing the chord information formed by the chord information forming means with the passage of time when the revolving type designation function of the performance operator is selected by the operator. The structural feature of the invention described in claim 3 is
A chord information generating means (69,609,610,612,613) that automatically generates chord information representing a chord, an instruction means (10) for instructing to turn the chord, and a turning of the chord in response to the instruction of the designation means. A turn type designating means (503) for automatically and randomly designating a type, and a chord represented by the chord information automatically generated by the chord information generating means and designated by the turn type designating means. Chord information forming means (504, 506 to 518) for forming chord information representing a rolled chord and a tone signal forming means (41, 519) for forming a tone signal corresponding to the chord information formed by the chord information forming means. It is equipped with and. Further, the constitutional feature of the invention described in claim 4 is that, in place of the tone signal forming means, a memory means (69, 315) for storing the chord information formed by the chord information forming means with the passage of time is provided. There is something.

Actions and effects of the present invention

In the invention according to claim 1 configured as described above, the performance operator is provided with a chord specifying function for specifying a chord and a turning type specifying function for specifying a turning type of the chord, and the chord of the playing operator is provided. A selection operator for selectively selecting the designation function and the inversion type designation function is provided, and when the chord designation function of the performance operator is selected by the selection operator, the tone signal forming means is designated by the performance operator. A tone signal corresponding to the selected chord is formed. Further, when the inversion type designating function of the performance operator is selected by the selection operator, the chord information forming means plays the chord represented by the chord information automatically generated by the chord information generating means. The chord information representing the turning chord turned into the turning type designated by the operator is formed, and the tone signal forming means forms the tone signal corresponding to the formed chord information. Therefore, according to the present invention, the performance operator for specifying a chord is effective when the performance operator is not used for specifying a chord without providing a special operator for designating the inversion type of the chord. Can be used to change the turning state of chords in various ways, and play a variety of musical performances. Further, in the invention according to claim 2 configured as described above, if the turning type designation function of the performance operator is not selected by the selection operator, the memory means replacing the tone signal forming means is the chord information. Since the chord information formed by the forming means is stored with the passage of time, the chord represented by the chord information generated by the chord information means with the passage of time is rotated in accordance with the operation of the performance operator and stored in the memory means. Remembered. Therefore, according to the present invention, if the stored chord information is reproduced, a chord performance in which the chord turning state is variously changed is played, and a special operator for designating the chord turning type is not used. You can enjoy a variety of reproduced music. Further, in the invention according to claim 3 configured as described above, when the instructing means instructs to invert a chord, the inversion type designating means automatically and randomly designates the inversion type of the chord, The chord information forming means forms chord information which is a chord represented by the chord information automatically generated by the chord information generating means and which represents a turning chord that has been turned into a turning type designated by the turning type designating means. The tone signal forming means forms a tone signal corresponding to the formed chord information. Therefore, according to the present invention, since the chord represented by the chord information generated by the chord information generating means is automatically and randomly turned, even if the performer does not specify the turn type, the chord is turned. The state can be changed variously, and a variety of playing music can be played. Further, in the invention according to claim 4 configured as described above, since the memory means instead of the tone signal forming means stores the formed chord information as time passes, the chord information generating means stores the time. Chords represented by chord information generated over time are automatically and randomly turned and stored in the memory means. Therefore,
According to the present invention, when the stored chord information is reproduced, a chord performance in which the inversion state of the chord is randomly changed is reproduced, and a variety of reproduced music can be enjoyed.

【Example】

An embodiment of the present invention will be described below with reference to the drawings
FIG. 1 is a block diagram of the electronic musical instrument according to the embodiment.
Showing This electronic musical instrument has a keyboard 10 and an operation panel 20.
You. The keyboard 10 is composed of many keys.
Many keys are divided into an upper key range and a lower key range. Upper key range
Is about 3 to 4 octaves, for playing melody
It is used, and the lower range is, for example, about 2 octaves.
Used to play chords. Pressing and releasing each key on this keyboard 10
A large number of keys provided for each key in the key switch circuit 10a
It can be detected by a switch,
The switch circuit 10a is connected to the bus 30. On the operation panel 20, a melody tone color selection operator group 2
1, turn chord tone color selection operator group 22, accompaniment style selection operation
Sakuzo group 23, accompaniment start / stop operator 24, track
Mode operator group 25 to 27, display elements 25a to 27a, 25b to 27b,
Sequencer start / stop operator 28, turn operator 29
Is provided. Melody timbre selection operator group 21 and turning chord timbre selection
The manipulator group 22 outputs melody sounds and turning chords respectively.
This is what you choose. Accompaniment style selection controls 23
Also select the type of automatic accompaniment, such as March, Waltz
Of. The accompaniment start / stop operator 24
It is an operator for instructing the start and stop of the performance. G
Rack mode operators 25-27 are used for melody, accompaniment and
For playing back chords (corresponding to 3 tracks)
The display element 25 is used to change the related mode.
a to 27a and 25b to 27b are for displaying the mode.
You. Sequencer start / stop operator 28 is a
(Playback of melody, accompaniment and inversion chords)
It is to instruct the start and stop. Turn operator 29
Indicates an inversion type of chord. The operation of each of these operator groups 21 to 29 is performed by turning the panel switch.
A plurality of controls provided in the path 20a corresponding to each operator group 21-29.
It is designed to be detected by the work switch,
The channel switch circuit 20a is connected to the bus 30. Ma
The display elements 25a to 27a and 25b to 27b are controlled by the display control circuit 20b.
The display control circuit 20b is also
Connected to bus 30. A tone signal forming circuit 31 and an automatic accompaniment tone signal are generated on the bus 30.
The raw circuit 42 and the external input / output circuit 50 are connected. Music
The signal forming circuit 31 outputs the melody tone signal and the turning chord signal.
To form. The automatic accompaniment sound signal generation circuit 42
Accompaniment sounds such as sound signals, arpeggio signals, and bass signals
The signal is automatically generated at a predetermined timing that corresponds to the progress of the song.
It occurs in. The external input / output circuit 50 is
Connect to musical instruments, other automatic players, external computers, etc.
And exchanges various data with the electronic musical instrument.
Is. Further, the bus 30 has a micro controller for controlling each circuit.
Computer 60 is connected, and the computer 60
Program memory 61, CPU 62, tempo oscillator 63, walkie
Memory 64, tone color control parameter memory 65, chord detection
Output table 66, chord constituent note table 67, turning chord number table
Table 68 and performance data memory 69. The program memory 61 is composed of ROM,
Stores programs corresponding to the flowchart in the figure
You. The CPU 62 executes the program.
The tempo oscillator 63 is controlled by a tempo operator (not shown)
The tempo clock signal (quarter note)
Is generated by dividing the signal into 16 and 32)
Things. The working memory 64 is composed of RAM.
The data required to execute the above-mentioned program is temporarily recorded.
I remember. Tone control parameter memory 65 is RO
It is composed of M and consists of melody, accompaniment and turn chords.
Memorize control parameters such as timbre for controlling timbre
Is what you do. Chord detection table 66, chord component sound table 67 and inversion
The chord number table 68 is composed of both ROMs.
The output table 66 is composed of a plurality of keys pressed in the lower key range of the keyboard 10.
Chord name based on combination (chord type TYPE and root note RO
It stores the data for detecting OT). sum
The note composition table 67 shows each chord name (chord type TYPE and
Corresponding to each root chord (for example, No.
(Corresponding to "TENK = 0" in Fig. 2)
The chord KC is stored in pitch order and the number of the same constituent notes is recorded.
I remember. The turning chord number table 68 is shown in FIG.
As you can see, the eight white keys (KC = 0,2,4,5,
Corresponding to 7,9,11,12), inversion chord number (1,2,0,3
~ 7) are memorized. The performance data memory 69 is composed of RAM
It is divided into tracks 0-2. Melody on track 0
Performance data related to the
Performance data related to playing is stored, and track 2
Performance data about turning chords is now stored
I have. Next, the operation of the embodiment configured as described above will be described.
You. When the power switch (not shown) is turned on, the CPU62
Executes the "May program" at step 100 in FIG.
And starts working memory 64 and performance at step 101.
Initialize the performance data memory 69, and proceed with steps 102-107.
Execute a circular process consisting of In this circulation process,
In step 102, operate the controls provided on the panel 20.
It is detected, and one of the keyboard 10 is detected in step 104.
Detect the key operation of. The controls on the panel 20 are operated
If the result is 102, the step is determined based on the judgment of “YES” in 102 above.
"Panel control routine" (Fig. 4)
Of the electronic musical instrument according to the operation of the operator.
Controls operating mode etc. Operate any key on the keyboard 10.
If it is made, "YES" in 104 above, that is, key release
It is determined that there is an event, and the same event is
For example, in step 106, "key-on processing routine" (fifth
(Fig.) Is executed to start the generation of a tone signal in response to the key depression.
Control. Also, the key release event is
If so, in step 107, "key-off processing routine"
(Fig. 6) is executed to generate a tone signal in response to the same key release.
Control the stop. The operation of this electronic musical instrument will be described in detail below for each mode.
To do. Operation according to the operation of the panel controls Melody tone color selection Operator group 21 and turning chord tone color selection
When any one of the operator groups 22 is operated, as described above,
The CPU 62 executes the “panel operator processing routine” fourth.
Start at step 200 in the figure
Thus, the tone color selection processing of step 202 is executed. This sound
In the color selection process, it corresponds to the operated operator.
Tone control parameter memory
65 to read the control parameters such as tone color
It is supplied to the tone signal forming circuit 41 separately for the rody or the turning chord.
You. Thereby, the tone signal forming circuit 41 is operated as described above.
Melody tone signal or inversion chord tone with tone color corresponding to the operator
Prepare for the issue. One of the accompaniment style selection controls 23 is operated
Then, by the determination processing of step 201,
Perform accompaniment style selection processing. This accompaniment style selection
In the selection process, the operated accompaniment style selection operation is performed.
Indicates the accompaniment type such as march and waltz corresponding to Sakuko 23
While supplying the signal to the automatic accompaniment sound signal generation circuit 42,
Tones of accompaniment sounds that are predetermined according to the accompaniment type
Control parameters for controlling the tone color, etc.
Read out from the parameter memory 65 and control the read out tone color etc.
The parameters are supplied to the automatic accompaniment sound signal generation circuit 42. This
As a result, the automatic accompaniment sound signal generation circuit 42 is
Automatic accompaniment for chords, arpeggios, bass sounds, etc.
Prepare to generate a sound with the timbre. When the accompaniment start / stop operator 24 is operated,
By the judgment processing of step 201, the step 212
It is determined whether the Kensa flag SEQ is "0". this
Sequencer flag SEQ is automatically played by "1" (sequence
Service) is operating, and "0" indicates that
It indicates that the dynamic performance is not in operation.
"YES" in step 212 only when the performance is not in operation
Based on the determination of, the processing of steps 213 to 216 is executed. This
In the processing of these steps 213-216, the accompaniment flag
Invert ACCMP from “0” to “1” or from “1” to “0”,
If the accompaniment flag ACCMP becomes "1" as a result of the inversion,
Supplies an accompaniment start command to the automatic accompaniment sound signal generation circuit 42
To do. As a result of the inversion, the accompaniment flag ACCMP is "0".
If it becomes, the accompaniment stop command is issued to the automatic accompaniment sound signal.
Supply to the generation circuit 42. This allows the automatic accompaniment sound signal
Activation and deactivation of raw circuit 42 is controlled. One of the track mode controls 25-27 is operated.
Then, according to the determination processing in step 201, step 217
Determines whether the sequencer flag SEQ is "0"
You. Also in this case, the above-mentioned step is performed only when the automatic performance is not in operation.
Based on the determination of “YES” in page 217, steps 218, 21
Execute the processing of 9. In step 218, track
Track mode flag every time the mode operator 25 is operated
Repeat TRMOD0 value from "0" to "2" in increments of "1"
The track mode controller 26 is changed every time
The value of the check mode flag TRMOD1 is repeated in the order of "0" to "2".
The return mode is changed by "1" and the track mode operator 27 is operated.
The value of the track mode flag TRMOD2 is set to "0" each time it is created.
~ Repeatedly in the order of "2" and changed by "1". these
Track mode flags TRMOD0 to TRMOD2 are melody and accompaniment
And the state of automatic performance for each turning chord
, The track mode flags TRMOD0 to TRMOD2 are
When it is "0", the flags TRMOD0 to TRMOD2 are melody and companion.
Shows the stop status of automatic performance for each playing and turning chord
You Each track mode flag TRMOD0 to TRMOD2
When set to "1", the same flags TRMOD0 to TRMOD2 are melody and companion
The recording states of playing and turning chords are shown. Each track
When the mode flags TRMOD0 to TRMOD2 are "2",
The same flags TRMOD0 to TRMOD2 are melody, accompaniment and turn chords.
Represents the playback state of each. In step 219, each track mode flag is
Display elements 25a-27a, 25b-depending on the value of TRMOD0-TRMOD2
Controls the display state of 27b. In this case, each track mode
Displayed when the flag flags TRMOD0 to TRMOD2 are "0".
The elements 25a to 27a are turned off and the display element 25a
The lights of b to 27b are also turned off. Each track mode flag TR
When MOD0 to TRMOD2 are "1" respectively, display elements 25a to 2
7a lights up and the display elements 25b to 27b
Turn off each one. Each track mode flag TRMOD0 to TRMO
When D2 is "2", the display elements 25a to 27a are respectively
The display elements 25b to 27b are turned on.
To do. Sequencer start / stop operator 28 is operated
Then, as a result of the judgment processing in step 201, step 220
Sequencer flag SEQ from "0" to "1" or "1"
To "0", and the sequencer flag SEQ
If “1” is displayed, “YE
Based on the judgment of "S", execute the processing from step 222 onwards.
If the sequencer flag SEQ becomes "0", the
Step 232 and later based on the judgment of "NO" in 221
The process of is executed. When the turning operator 29 is operated, the determination in step 201 is made.
By the fixed processing, the turn switch flag TSW is set in step 235.
Is inverted from "0" to "1" or from "1" to "0". this
The turn switch flag TSW is set to "0" to indicate the lower key range of the keyboard 10.
Shows the modes used to play chords for automatic accompaniment.
And the same lower range by "1" is the inversion chord number of the inversion chord.
Represents the mode used to specify the. In this way, the operation of each operator group 21-29 on the panel 20 is performed.
Depending on the work, the operation mode of this electronic musical instrument is instructed. Generation of melody sound and accompaniment sound by keyboard performance Next, the melody sound and
And an operation for generating an automatic accompaniment sound will be described. In addition,
In this case, sequencer flag SEQ and turn switch flag
Both TSW are set to "0" and the accompaniment flag
ACCMP is set to "1". When any key on the keyboard 10 is pressed, the CPU 62
As described above, at step 300 in FIG.
The routine is started and the key code is
Set KC to a value that represents the pressed key, and go to step 302.
Key pressed based on the above key code KC is the upper key range
It is determined whether it belongs to (melody key range). In this case, if the pressed key belongs to the upper range,
For example, based on the judgment of “YES” in step 302,
At step 303, melody sound pronunciation processing is executed. This melody
The key code KC and the same key
-A message indicating that the code KC is related to a melody
No. and the same key code KC are related to key pressing.
And a signal representing the same are supplied to the tone signal forming circuit 41. Musical tone
The signal forming circuit 41 responds to this signal supply to generate the key code KC.
Begin to form a melody tone signal with a higher pitch
No. to the sound system 43. Sound system
43 produces a melody sound corresponding to the melody sound signal
You. In this case, the timbre of the melody is as shown in FIG.
By the tone color selection processing in step 202, the tone signal forming circuit 4
To control parameters such as the timbre for the melody sound supplied to 1.
More controlled. Also, if the depressed key belongs to the lower key range,
For example, the CPU 62 determines “NO” in step 302 and
“YES” in step 306, that is, the turn switch flag TSW is
If it is determined to be “0”, chord detection processing is performed in step 307.
To execute. In this chord detection process, the chord detection
Table 66, refer to the table 66
Detect the chord name that is determined according to the
Data TYPE and root note data ROOT, the type of the detected chord name
And the value that represents the root sound. Next, in step 308
Refer to the chord constituent note table 67 and refer to the type data TYPE
And multiple configurations of chords specified by root data ROOT
Table 67 shows multiple key codes KC for each sound.
And supplies it to the automatic accompaniment sound signal generation circuit 42. This
, The accompaniment flag ACCMP is set to “1”, and
The dynamic accompaniment sound signal generation circuit 42 executes step 21 in FIG. 4 described above.
It is operating by the processing of 5, and the same generation circuit 42 supplies the above.
Chords, arpeggios based on multiple key codes KC
Automatically forms accompaniment sound signals such as sounds and bass sounds
Supply to the air conditioning system 43. The sound system is
The accompaniment sound corresponding to the performance signal is generated. In this case, the accompaniment
The types of tones and the timbre of the accompaniment tones are determined by the steps in FIG.
By the accompaniment style processing of 209, the accompaniment sound signal forming circuit 42
A signal representing the accompaniment style supplied to the instrument and the sound for the accompaniment sound
It is controlled by a control parameter such as color. On the other hand, when one of the keys on keyboard 10 is released, the CPU62
As described above, in step 400 of FIG.
Execution of the "processing routine", and at step 401,
-Set the code KC to a value that represents the released key, and
At 402, the key released based on the key code KC is
It is determined whether or not it belongs to the key range (melody key range). In this case, if the released key belongs to the upper range,
For example, based on the judgment of “YES” in step 402,
At step 403, the melody sound mute processing is executed. This melody
In the sound muting process, the same key code as the key code KC
-A message indicating that the code KC is related to a melody
No. and the same key code KC are related to key release.
And a signal representing the same are supplied to the tone signal forming circuit 41. Musical tone
The signal forming circuit 41 responds to this signal supply to generate the key code KC.
A melody sound signal with a higher pitch is attenuated. this
Sound system 43 is used to
The melody sound corresponding to the rody sound signal is attenuated and
Then stop. If the released key belongs to the lower key range,
If it is, the muffling process as described above is not performed.
No. In this way, the sequencer flag SEQ and the turn switch
Both flags TSW are set to "0" and accompaniment
Keyboard 1 when the flag ACCMP is set to “1”
The melody sound is pronounced in response to the keys being released in the upper range of 0.
Controlled and automatic in response to key presses in the lower key range
The pronunciation of the accompaniment sound is controlled. In this state, the accompaniment start / stop operator 28
If is operated, in step 213 of FIG.
Change the lag ACCMP to "0" and at step 216
Since the operation of the automatic accompaniment sound signal generation circuit 42 is stopped,
The auto accompaniment sound stops. Recording of the above melody performance and chord designation performance Next, the melody performance on the keyboard 10 as described above and
A case of recording a chord designated performance will be described. In this case, the sequencer flag SEQ is set to "0".
Player is operating the track mode controls 25-27
By operating, track mode flags TRMOD0 to TRMOD
Set MOD2 to "1""1""0" respectively (Fig. 4
See steps 217-219). In addition, turn switch flag
TSW is set to “0”. In this state, the performer starts / stops the sequencer.
The operator 28 is operated. As a result, as described above,
By the processing of step 220 in the figure, the sequencer flag SEQ
It is changed to “1” and the CPU 62 judges “YES” in step 221.
Set the operation command signal in step 222 to the automatic accompaniment sound signal.
The accompaniment flag ACCMP is supplied to the generation circuit 42.
Set to “1”. This allows the automatic accompaniment sound signal generation circuit
42 is set to the actuated state regardless of its previous state.
Next, the CPU 62 displays the progress status of the music in step 223.
Reset the timing count value to the initial value.
, The address of each track 0-2 of the performance data memory 69
Set each pointer value that represents
After the processing of 225, the program proceeds to step 226. In step 226, the track mode flag TRMOD0 is "1"
It is judged as "YES" based on the setting of
In step 227, the melody tone color selection operator group 21
Play the melody tone data that represents the selected tone
Write to the beginning of track 0 of data memory 69. next,
In step 228, the track mode flag TRMOD1 is set to "1"
If YES is determined based on the settings, the
Select by accompaniment style selection operator group 23 at step 229
Accompaniment style data representing the type of accompaniment being played
Write to the beginning of track 1 of data memory 69. In addition,
Writing data in these steps 227,229
Then, the pointer values for track 0 and track 1 are
Is updated to a value indicating the address of. On the other hand, in this state, tempo oscillator 63
When an interrupt signal is input, the CPU 62
Start the program ”at step 600 in FIG.
In step 601, "YES", that is, the sequencer flag SEQ is
When it is determined to be “1”, the timing control is performed in step 602.
Increase the und value by "1". In this case, the track mode
Flags TRMOD0 to TRMOD2 are "1", "1" and "0" respectively
Since it is set to
Steps 603, 608, and 614 both determine "NO", and step 6
At 19, the execution of the "tempo interrupt program" is completed.
This "tempo interrupt program" is executed every predetermined period.
Therefore, the timing count value is
growing. While updating the timing count value, the keyboard 10
When any key is pressed by pressing the
U62 executes the "key-on processing routine" shown in FIG.
Controls the generation of rody and accompaniment sounds. But this place
If the sequencer flag SEQ is set to “1”,
Also, track mode flags TRMOD0 and TRMOD1 are also set to "1".
Since it is set, even if the pressed key belongs to the upper key range,
If so, the melody sound pronunciation process of step 303 described above
After step 304, it is determined to be “YES” and step 30
The key-on signal KON indicating the key pressed and the key pressed is displayed in 5.
Write the key code KC on track 0 and press the key
Timing count as timing data showing the time point of
Value is written to the same track 0. The depressed key is the lower key range
If it belongs to, the chord detection in step 307 described above.
After the output process and the output process of the chord constituent tones in step 308.
In step 309, it is determined as “YES”, and in step 310
A type data representing each of the detected chord type and root note.
If you write the data type and root data ROOT to track 1,
Both are used as timing data indicating the time of the key depression.
The timing count value is written in the same track 1. On the other hand, when a key belonging to the upper range is released on the keyboard 10,
Similar to the above case, the CPU 62 executes the "key-off processing routine" shown in FIG.
Control to mute the melody sound. Only
However, in this case also, the sequencer flag SEQ is set to "1".
Track mode flag TRMOD0
Since it is set to "1", the above-mentioned step 403
Determined as "YES" in step 404 after the melody sound mute processing
Then, in step 405, the key-off signal KOF and
Write the key code KC representing the released key to track 0
In addition, as timing data showing the time of key release
Write the timing count value to the same track 0. Na
Oh, to write the data of these steps 305,310,405
Also, the pointer values of track 0 and track 1 are
It is updated to the value indicating the next address. During playing on the keyboard 10, you can select melody tones.
When the selection operator group 21 is operated, the steps shown in FIG.
In steps 203 and 204 after tone color selection processing of
S ”, and in step 205 the selected tone color is selected.
Melody timbre data representing the timbre corresponding to the selection operator 21
Is written to track 0, and the time when the same tone is changed
The timing count value is the same as the timing data.
Write to track 0. Also, the accompaniment style selection operator
When the group 23 is operated, step 209 of FIG. 4 described above is performed.
After step 210 after accompaniment style selection processing, the answer is YES.
Set the accompaniment style that was operated in step 211.
Accompaniment style data indicating the accompaniment type corresponding to the selection operator 23.
Write the data to track 1 and
Timing count as timing data indicating the time of renewal
Value is written to the same track 1. Note that these steps
Track 0 and track 0
And each pointer value of track 1 to the value that indicates the next address
Will be updated. In this way, the key performance information on the keyboard 10 and the panel 20
Melody timbre selection of operators 21 and accompaniment style selection
The operation information of the control group 23 shows performance data over time.
It is recorded in tracks 0 and 1 of the memory 69, respectively. During such recording, sequencer start / stop operation
When the operator 28 is operated, the step 220 in FIG. 4 described above is performed.
Sequencer flag SEQ is inverted by the process of and is set to "0".
Therefore, the CPU 62 determines “NO” in step 221,
At step 232, an operation stop command is issued to generate an automatic accompaniment sound signal.
It is supplied to the path 42 and the accompaniment flag ACCMP is changed to "0".
To change. As a result, the automatic accompaniment sound signal generation circuit 42 does not operate.
Stop. Next, through the processing of step 233, step 2
At 34, play the timing count value and end data.
Write to track 0 and track 1 of data memory 69.
This completes the recording of performance information on tracks 0 and 1.
You. In the above explanation, the melody performance is tracked.
At the same time as writing to Ch0, specify the chord on Track 1.
I tried to record, but track mode operator group 25, 26
To set the track mode flag TRMOD0 to "1".
Set and set the track mode flag TRMOD1 to "0"
If set to, only melody performances will be recorded on track 0.
Will be recorded. Also, set the track mode flag TRMOD0 to "0".
Set to and track mode flag TRMOD1 "1"
If set to, only chords will be recorded on track 1.
Will be recorded. Reproduction of the above melody performance and chord designated performance Next, the melody performance and the harmony performance recorded as described above
The case of reproducing the designated sound performance will be described. In this case, the sequencer flag SEQ is set to "0".
Player is operating the track mode controls 25-27
By operating, track mode flags TRMOD0 to TRMOD
Set MOD2 to "2", "2" and "0" respectively (Fig. 4
See steps 217-219). In this state, the performer starts / stops the sequencer.
The operator 28 is operated. As a result, as described above,
By the processing of step 220 in the figure, the sequencer flag SEQ
It will be changed to “1” and will be moved to step 221 as above.
Based on the determination of “YES”, the CPU 62 proceeds to step 222.
Control the automatic accompaniment sound signal circuit 42 to the operating state.
Set the accompaniment flag ACCMP to "1", and set the tie in step 223.
Reset the minging count value to the initial value and
The pointer values of the clocks 0 to 2 are set to initial values. next,
At the end of tracks 0 and 1 in the performance data memory 69 at step 224
Melody tone color data stored in the head and
Each accompaniment style data is read, and the read melody
Tones, etc. Control parameters memo based on tone data
Tone signal formation using control parameters such as tone color read from
While supplying to the circuit 41, the accompaniment style data and
Based on the same data from the tone color control parameter memory 65
Automatic accompaniment sound signal generation with read-out tone color and other control parameters
Supply to the circuit 42. As a result, the tone signal forming circuit 41
The melody sound signal formed by
The tone color is controlled by the tone color data,
The accompaniment in the automatic accompaniment sound signal generation circuit 42 is recorded as described above.
When it is controlled by the type represented by the accompaniment style
In both cases, the tone of the accompaniment sound is controlled according to the accompaniment style.
Is done. After the processing in step 224, the performance data is set in step 225.
Read and write the next data of tracks 0 and 1 in the data memory 69.
I remember. In these steps 224, 225
After reading the data,
The pointer value is updated to a value indicating the next address. On the other hand, even in this state, the tempo allocation from the tempo oscillator 63 is
A "tempo interrupt program" is executed each time a
Sequencer flag SEQ is set to “1”
Therefore, the CPU 62 counts the timing in step 602.
Increment the value by "1". Also in this case the truck
Since the mode flag TRMOD0 is set to "2", CP
The U62 executes "YE
S ”, and in step 604, the above-mentioned step 225 (fourth
From the track 0 in the performance data memory 69
The timing data in the data that was read and stored
Compare with the timing count value. This comparison smell
If they do not match, go to step 604 above.
The program to step 608 based on the judgment of "NO"
Proceed, and if they match, at step 604
Execute the processing of steps 605 to 607 based on the judgment of "YES"
To do. In step 605, the stored data is stored.
Is related to the end data,
If the data is about end data, step
If the answer is "YES" in 605, step 608 in the program.
Proceed to. Also, if the data is related to end data
If not, it is judged as “NO” in Step 605, and
At step 606, the above data other than the timing data
Key code KC, key-on signal KON, key-off signal KO
F, Melody tone color data is supplied to the tone signal forming circuit 41
To do. The tone signal forming circuit 41, as described above,
Key code KC, key-on signal KON, key-off signal KOF,
A melody tone signal is formed according to the tone data
Output to the sound system 43. This makes the sound
From the system 43, the melody corresponding to the melody sound signal
A di sound is produced. After the processing of step 606, the CPU 62 proceeds to step 607.
And read the next data from track 0 of performance data memory 69.
Take it out and memorize it again.
Return to 4. Then, in step 604, the Thailand in this data is
Minging data and timing count value match
It is judged again whether or not it is
Execute the processing of steps 605 to 607 so that they do not match.
Then, based on the judgment of “NO” in step 604,
Program to step 608. Note that the above step 6
In the process of reading data in 07, the track
The 0 pointer is advanced for each read. In step 608, track mode data TRMOD
Based on the fact that 1 is “2”, it is judged as “YES” and
Program to step 609 and beyond. Steps 609-61
In the process of 3, the same as the above steps 603 to 607.
Stored in track 1 of the performance data memory 69
The chord performance data is sequentially read as time passes, and
The accompaniment sound according to the chord performance data is generated. in this case,
The data stored in track 1 is accompaniment style, sum
Data that represents the type and root of the sound and timing data
Yes, in the accompaniment sound processing in step 611,
For the data related to the
The same data is supplied to the accompaniment sound signal generation circuit 42.
Sound read out from the control parameter memory 65 according to
Control parameters such as colors are also supplied to the automatic accompaniment sound signal generation color 42.
Be paid. Also, data on chord types and roots
Regarding, regarding the chord component sound table 67,
Key codes that represent the chord constituent tones read from each
KC is supplied to the automatic accompaniment sound generation circuit 42. This allows
The automatic accompaniment sound signal generation circuit 42 is located in the lower key range of the keyboard 10.
As in the case of playing, the accompaniment sound signal is formed and the sound is played.
Output to the drive system 43, so accompany from the system 43
An accompaniment sound corresponding to the performance sound signal is generated. Also,
In 612, the chord type and the root note
Saved as type data TYPE and root data ROOT
Is done. In this way, the melody stored in tracks 0 and 1
I Performance data and chord specified performance data
Melody sounds corresponding to both performance data
And the accompaniment sound is reproduced. During such playback, sequencer start / stop operation
When the operator 28 is operated, the step 220 in FIG. 4 described above is performed.
Sequencer flag SEQ is inverted by the process of and is set to "0".
Therefore, the CPU 62 determines “NO” in step 221,
At step 232, an operation stop command is issued to generate an automatic accompaniment sound signal.
It is supplied to the path 42 and the accompaniment flag ACCMP is changed to "0".
To change. As a result, the automatic accompaniment sound signal generation circuit 42 does not operate.
Stop. Next, in step 233, the melody sound signal and
And a control signal to stop the generation of the accompaniment sound signal.
To the signal forming circuit 41 and the automatic accompaniment sound signal generating circuit 42 respectively
Output. As a result, the tone signal forming circuit 41 and the automatic
The accompaniment sound signal generation circuit 42 stops the generation of the musical sound signal being generated.
Therefore, the melody sound being sounded by the sound system 43
And the pronunciation of the accompaniment sound stops. In the above description, the performance data memory 69
Melody performance data recorded on tracks 0 and 1 and
I tried to play the chord specified performance data at the same time,
Track mode By operating the operator groups 25 and 26,
Set the mode flag TRMOD0 to "2" and
If the mode flag TRMOD1 is set to "0",
Only the melody performance data recorded on the track 0 is played.
Is done. Also, set the track mode flag TRMOD0 to "0".
Set and set the track mode flag TRMOD1 to "2"
If set to, the chord finger recorded on track 1
Only constant performance data is played. Generation of inversion chords by specifying the keyboard Next, use the 13 keys from the lower side of the lower range of the keyboard 10.
A case where a turning chord is generated will be described. In this case, the sequencer flag SEQ is set to "0".
Player is operating the track mode controls 25-27
By operating, at least the track mode flag
Set TRMOD1 to "2" and track mode flag
Set TRMOD3 to "0" (steps 217 to 2 in Fig. 4).
19). In addition, the performer can operate the turning operator 29.
And set the turn switch flag TSW to "1".
(See step 235 in FIG. 4). In this state, the performer starts / stops the sequencer.
The operator 28 is operated. As a result, as mentioned above,
The Kensa flag SEQ has been changed to “1” and the performance data memo
Chord specified performance data stored in track 1 of 69
Are sequentially read and the accompaniment sound signal is automatically generated. Na
Oh, while playing this chord specified performance data
Type data indicating the chord type and root note of TYPE and the root
The sound data ROOT is changed sequentially. On the other hand, the performer listening to the chords and playing the lower range of the keyboard 10.
When the key belonging to is pressed, the CPU 62 causes the CPU 62 to proceed to step 300 in FIG.
Start execution of the "key-on processing routine" at
The key code KC is the value that represents the key pressed in step 301.
Set. In this case, the set key code KC is the key
Belonging to the lower key area of the board 10, and the turning switch flag TS
Since W is set to "1", the processing in step 301 is performed.
After that, in steps 302 and 306, both are judged as "NO", and the professional
Advance gram to step 311 and beyond. In step 311, the track mode flag TRMOD1
Is "2". In this case the truck
Set the mode flag TRMOD1 to "2" as described above.
Therefore, the basis of the judgment of “YES” in step 311 is
In step 312, the key code KC is in the range 0 ≦ KC ≦ 12
It is determined whether or not This "0" and "12" is the keyboard 10
Key of the lowest key in the lower range and one octave higher
-Corresponding to each code KC,
If the key is not within this range, then in step 312 `` N
O ”, that is, the key code KC is not 0 ≦ KC ≦ 12
Then, in step 316, the "key-on processing routine" is executed.
To end. On the other hand, if the depressed key is within this range,
For example, in step 312, “YES”, that is, the key code KC is 0.
When it is determined that ≦ KC ≦ 12, the “turn processing
The "physical routine". This "turn processing routine"
Details are shown in FIG. 7, the CPU 62 at step 500.
The execution of the key code KC is started in step 501.
It is determined whether or not the pressed key is a white key based on
To do. In this case, if the pressed key is a white key, the step
Based on the judgment of “YES” in page 501, go to step 502.
Refer to the turning chord table 68 and check the key code KC.
The corresponding turn chord number is read from the table 68 and turned.
Set as chord number data TENK. Then step 50
Refer to the chord constituent note table 67 in 4 and refer to the chord finger
Type data set by constant performance playback processing
Based on TYPE and root data ROOT
The number of key codes KC and the number of constituent sounds from the same table 67
Read the chord component sound data CHD (0) to CHD (3) and
It is set as the component sound number data N. In addition,
The number is 3 or 4, and if the same number is 3, the chord structure is
The sound data CHD (3) is not used. Also, chord composition
The sound table 67 contains basic chords as shown in FIG.
(Compatible with TENK = 0) Each constituent sound is stored in pitch order
The chord component sound data CHD (0) to CHD
(3) is a kiko that represents chord constituent tones that sequentially increase from the bass
Set to KC. After processing these steps 502 and 504, in step 505
Determines whether the turning chord number data TENK is "0"
You. Now, if this turning chord number data TENK is "0",
For example, based on the determination of “YES” in step 505,
At 519, multiple key codes that represent the constituent tones of the inversion chord are displayed.
Do KC, that is, chord component sound data CHD (0) to CHD (3)
It is supplied to the tone signal forming circuit 41. Thereby, the tone signal
The forming circuit 41 uses the chord component sound data CHD (0) to CHD (CHD).
Musical signal of pitch hawk corresponding to (3), that is, TE in FIG.
A chord signal represented by NK = 0 is formed to generate a sound system.
Output to system 43. This allows the sound system 43
Is the basic chord. The tone of this chord
In accordance with the operation of the chord tone color selection operator group 22,
The tone color set by the processing of 202 (FIG. 4). In addition, the turnover set by the processing of step 502 described above.
If the chord number data TENK is not "0",
At step 505, it is judged as "NO" and at step 506 the turning chord
It is determined whether the number data TENK is larger than "2".
In this case, turn chord number data TENK must be larger than "2".
If so, it is determined to be “YES” in step 506, and step
Set rotation number ROT to "TENK-2" on 507
After that, the circulation process including steps 508 to 512 is executed.
In this circulation processing, the rotation number ROT
While subtracting "1" each time, ROT becomes "0" the same number of times.
The chord constituent sound that represents the lowest chord constituent sound for each cycle.
Raise the data CHD (0) by one octave to obtain the highest chord structure.
If the chord component sound data CHD (N-1) that represents a sound is
Chords representing chord constituents other than the lowest chord constituent
The component sound data CHD (1) to CHD (N-1) are respectively shifted.
The chord component sound data CHD (0) to CHD (N-2).
You. As a result, the chord component sound data CHD (0) to CHD (N
-1) is the chord structure represented by TENK = 3 to 7 in FIG.
It represents the sound. Furthermore, if the turning chord number data TENK is "2" or less,
If, for example, it is determined to be “NO” in step 506, step 513
Rotation frequency ROT was set to "3-TENK"
After that, the circulation process including steps 514 to 518 is executed. This
In the circulation processing of,
While subtracting "1" each time, ROT becomes "0" the same number of times.
The chord constituent sound that represents the highest chord constituent sound for each cycle.
Lower the data CHD (N-1) by one octave
If chord constituent sound data CHD (0) representing the constituent sound is
Chords that represent chord constituents other than the highest chord constituent
The constituent sound data CHD (0) to CHD (N-2) are respectively shifted.
To create chord component sound data CHD (1) to CHD (N-1)
You. As a result, the chord component sound data CHD (0) to CHD (N
-1) is the chord composition represented by TENK = 1, 2 in Fig. 2
It represents a sound. Consisting of steps 508-512 and steps 514-518
After each circulation processing, turn by the processing of step 519 described above.
The generation of chords is controlled, and in step 520, the
End the execution of the command. On the other hand, in step 501, “NO”, that is, the key is pressed.
If the determined key is not a white key (black key), CPU6
2. In step 503, turn chord number data TENK is 0-7.
Randomly set to one of these values. This place
In this case, the random generator provided in the CPU 62 is used. This
After the processing of step 503, but before the processing of steps 504 to 519
The inversion chord that is randomly selected after the processing described above is executed.
Is generated. Also, the key that has been pressed as described above is released.
Then, the CPU 62 executes the "key-off processing routine" (Fig. 6).
To go. In this case, the key code set in step 401
KC does not show the melody key, so step 402
It is determined to be “NO” in step 406, and in step 406, the turning switch
Data TSW is “1” and key code KC is 0 ≦ KC ≦ 12
It is determined whether it is within the range of. In this case,
Switch data TSW is set to "1", but the key release
If the selected key is not within this range, go to step 406.
"NO", that is, the key code KC is not 0≤KC≤12.
The key-off processing routine of step 410.
Finish execution. On the other hand, if the released key is within this range,
For example, in step 406, "YES", that is, the key code KC is 0.
It is determined that ≦ KC ≦ 12, and the turning chord is determined in step 407.
The tone generation stop control signal is supplied to the tone signal forming circuit 41.
As a result, the tone signal forming circuit 41 forms the inversion chord signal.
Stop and the inversion chord from the sound system 43 is pronounced.
Will not stop. In this way, record on track 1 of performance data memory 69
While playing the specified chord performance data,
Press and release any of the eight white keys from the lower side of the lower key range
The chord specified by the performance data.
In addition to being able to pronounce the turned chords,
Random turn sum by pressing and releasing the black key in the same range
Can produce sound. Recording the above turning chord Next, when recording the performance of the above turning chord
explain about. In this case, in addition to the case where the above turning chord is generated,
The player operates the track mode operator 27,
Set the track mode flag TRMOD2 to "1" (4th
See steps 217-219 in the figure). And the same as when the performer produces the inversion chord
When the operation is performed, the sequencer flag SEQ first changes to "1".
At the time of the change, the CPU 62 displays "YE" in step 230 of FIG.
"S" is determined, and the turning chord tone color is selected in step 231.
Plays inversion chord tone data selected by subgroup 22
Write to track 2 of data memory 69. Also, after that, in step 313 of FIG.
In step 314 after the "turning process", "YES"
The Kensa flag SEQ is "1" and the track mode flag is
It is determined that the lag TRMOD2 is “1”, and step 315 is executed.
When the pronunciation of the turning chord as described above is started,
Related key-on signal KON and keys that represent the constituent tones of the same chord
Code KC, that is, inversion chord data CHD (0) to CHD (3)
(However, if the number of chord constituent tones is 3, then the inversion chord data
CHD (0) to CHD (2)) in step 602 of FIG.
Performed with the timing count value updated by
Write to track 2 of data memory 69. Also, FIG.
Step 407, after the "turning chord constituent sound mute processing"
In step 408, "YES", that is, the sequencer flag SEQ
It is "1" and the track mode flag TRMOD2 is "1".
If it is determined that the
Key-off signal KON for turning chords when muting chords
And the key code KC that represents the constituent tones of the same chord
Sound data CHD (0) to CHD (3) (however,
If the number is 3, the inversion chord data CHD (0) to CHD
(2)) along with the timing count value
Write to track 2 of data memory 69. Furthermore, while playing such a turning chord,
When the selection operator group 22 is operated, step 206 in FIG.
"YES", that is, the tone of the inversion chord was changed.
Set, and in step 207 “YES”
The Kensa flag SEQ is "1" and the track mode flag is
It is determined that the lag TRMOD2 is “1”, and step 208 is executed.
Inversion chord tone color data corresponding to the operated operator
Is written in the track 2 of the performance data memory 69. Thus, in this mode of operation,
Sound data is recorded on the track 2 as time passes
It is written sequentially. On the other hand, in this state, sequencer start / stop operation
When the work 28 is operated, the CPU 62 causes the
Change the sequencer flag SEQ to "0" in step 220 of Fig. 4.
Then, in step 221, the program is judged as "NO".
Proceed to step 232 and beyond. In this case as well,
In step 232, the operation of the automatic accompaniment sound signal generation circuit stops.
It is controlled and the accompaniment flag ACCMP is changed to "0".
You. In step 234, the performance data memory 69
The end data is written to the clock 2 together with the timing data.
Be impressed. Playing the recorded turning chords Next, playing the turning chords recorded as described above
The case will be described. In this case, the sequencer flag SEQ is set to "0".
The player operates the track mode control 27 while
By doing so, the track mode flag TRMOD2 is set to "2".
Set (see steps 217 to 219 in FIG. 4). In this state, the performer starts / stops the sequencer.
The operator 28 is operated. As a result, similar to the above case,
Sequencer flag SEQ by the processing of step 220 in FIG.
Is changed to "1", and the CPU62 automatically executes steps 222 and 223.
Controls the accompaniment sound signal generation circuit 42 to the operating state and
Set the play flag ACCMP to "1" and set the timing count value.
To the initial value and track 2 pointer
Set the value to the initial value. Next, in step 224, the performance data is
Data stored at the beginning of track 2 in data memory 69
Read out the chord tone color data and
Read from the tone color control parameter memory 65
Control parameters such as the selected tone color are supplied to the tone signal forming circuit 41.
You. As a result, the transfer formed by the tone signal forming circuit 41 is performed.
The chord signal is converted to the recorded chord tone color data.
The timbre is more controlled. After the processing in step 224, the performance data is set in step 225.
Reads and stores the next data in track 2 of data memory 69.
I'll do it. Note that the data in these steps 224 and 225
After reading the data, the pointer value for track 2 is
Is updated to a value indicating the address of. On the other hand, even in this state, the tempo allocation from the tempo oscillator 63 is
A "tempo interrupt program" is executed each time a
Sequencer flag SEQ is set to “1”
Therefore, as in the case above, the CPU 62 executes the step 602.
The timing count value is advanced by "1". Also this
In this case, set the track mode flag TRMOD2 to "2"
Therefore, the CPU 62 determines “YES” in step 614.
Then, the program proceeds to step 615 and thereafter. S
In the processing of steps 615 to 618, the above steps 603 to 6 are performed.
In the same way as 07, write to track 2 of performance data memory 69.
Sequential reading of remembered turning chord data over time
To produce a turning chord corresponding to the same data. So
As a result, the inversion chord performance recorded in the performance data memory 69 is recorded.
The performance data is reproduced, and inversion chords are sequentially generated. Also, during playback of such inversion chords, the sequencer
When the start / stop operator is operated, the CPU 62 causes the above-mentioned
Similar to the case, in step 220 of FIG.
Change SEQ SEQ to “0” and set “NO” in Step 221.
Automatic accompaniment sound signal generation in step 232, 233 based on judgment
Controls the operation of the circuit 42 to stop, and also stops the generation of turning chords.
Control. This ends the reproduction of the turning chord. Even if the above embodiment is modified as follows, the present invention
Can be implemented. (1) In the above embodiment, when turning a chord,
As shown in Fig. 2, the highest note of the chord component is one octave.
Lower or lower the lowest note of the same note by one octave
Then, all of the multiple constituent tones of the turned chord are 1 octave.
I tried to fit within the range of the chord, but multiple chord components
Either up or down by more than one octave
The multiple constituent tones of the turned chord into multiple octaves.
You may cross. In this case,
"(Fig. 7)", multiple octaves of the chord constituent tones
Should be changed. (2) In the above embodiment, the 13 keys from the bottom of the keyboard 10
By operating the white key of the
Then the chord corresponding to the operation key is turned, and
Random chord inversion by operating the black keys in the key range
However, the black key is used to set the standard
The chord corresponding to the operation key is rotated based on
In addition, you can change the chord inversion by operating the white key.
It may be done at random. Also, these chords
The number of keys used at one time is not limited to 13
Good. Furthermore, these chord turning instructions can be operated by other than keys.
You may make it perform using a child. (3) In the inversion chord performance of the above embodiment, the keyboard 10
Produce inversion chords only while pressing any of the 13 keys from the bottom
However, even if the key is released
The same inversion chord will be played until a key is pressed.
You may do it. In this case, the "key-off processing routine"
(Fig. 6) Step 407 of turning chord constituent sound mute processing
Do not do it. Also, this turning chord is automatically
Intermittent sound with the same accompaniment style,
Automatically generate arpeggio and bass sounds that correspond to the same chord
You may make it pronounce. (4) In the above embodiment, the performance data memory 69 is set to 3
Divide into individual tracks 0 to 2, and play melody and chord finger
Data for constant performance and inversion chords are recorded independently
However, the performance data must be mixed with each of these data.
It may be recorded in the melody 69. (5) In the above embodiment, melody performance and chord designation
Data about playing and turning chords was followed as the song progressed.
Based on the key performance (real-time performance), the same key performance
It will be recorded in the performance data memory 69 together with the minging data.
But, melody performance, chord designation performance and turning chord
Input data related to the music
That is, step input may be performed. this
If the melody, chord and inversion chord are played in the order
Ignore the time interval and enter the melody sound,
Performance data of chords and inversion chords in order of input
Stored in the memory 69, and regarding the timing data,
Separately when inputting each data or after inputting each data
Alternatively, the performance data memory 69 may be recorded.
In addition, the data regarding the melody, chord, and turning chord
Data on a regular basis and play it back or operate other controls.
When reading and reproducing each time, the timing data
You don't even have to enter. (6) In the above-mentioned embodiment, the key operation of the keyboard 10 is accompanied.
I didn't detect a key touch,
Play the generated melody sound, accompaniment sound and inversion chord.
The amount, tone, etc. are controlled according to the key touch.
You may. Also, in this case, the key touch is also a melody.
Performance data, chord designation performance data, and turning chord data
Both should be recorded in the performance data memory 69. (7) In the description of the operation of the above embodiment, the external input / output
Explains in detail how data is transmitted and received via the route 50.
I didn't explain it, but you can use this external I / O circuit 50
Allows each data in the performance data memory 69 to
Instrument, other automatic performances and external devices such as computers.
Data, recorded or created by the external device.
It is also possible to transfer and record the data to the performance data memory 69.
You.

[Brief description of drawings]

FIG. 1 is an overall block diagram of an electronic musical instrument according to an embodiment of the present invention, FIG. 2 is an explanatory diagram for explaining a turning chord, and FIG.
FIG. 8 to FIG. 8 are flowcharts corresponding to the program executed by the microcomputer of FIG. Explanation of symbols 10 …… keyboard, 10a …… key switch circuit, 20 …… operation panel, 20a …… panel switch circuit, 25 to 27 …… track mode operator group 25 to 27, 29 …… turning operator, 41 ...... Music tone signal forming circuit, 42 …… Automatic accompaniment sound signal generating circuit, 60 ……
Microcomputer, 66 ... Chord detection table, 67 ...
… Chord composition note table, 68 …… Rotating chord number table,
69 …… Performance data memory.

Claims (4)

(57) [Claims] 1. A performance operator having a chord specifying function for specifying a chord and a turn type specifying function for specifying a turn type of a chord; and a chord specifying function and a turn type specifying function of the performance operator. A selection operator to be selected, chord information generation means for automatically generating chord information representing a chord over time, and when the turning type designation function of the performance operator is selected by the selection operator, Chord information forming means for forming chord information representing chord information automatically generated by the chord information generating means, the chord information representing a turning chord turned into a turn type designated by the performance operator, and When the chord designating function of the performance operator is selected by the selection operator, a tone signal corresponding to the chord designated by the performance operator is formed, and the selection operator selects one of the performance operators. An electronic musical instrument comprising: a tone signal forming means for forming a tone signal corresponding to the chord information formed by the chord information forming means when the inversion type designation function is selected. 2. A performance operator having a chord specifying function for specifying a chord and a turn type specifying function for specifying a turn type of the chord; and a chord specifying function and a turn type specifying function of the performance operator. A selection operator to be selected, chord information generation means for automatically generating chord information representing a chord over time, and when the turning type designation function of the performance operator is selected by the selection operator, Chord information forming means for forming chord information representing chord information automatically generated by the chord information generating means, the chord information representing a turning chord turned into a turn type designated by the performance operator, and When the chord designating function of the performance operator is selected by the selection operator, chord information representing the chord designated by the performance operator is stored with the passage of time, and the chord information is stored by the selection operator. And a memory means for storing the chord information formed by the chord information forming means with the passage of time when the revolving type designation function of the performance operator is selected. 3. A chord information generating means for automatically generating chord information representing a chord over time, an instruction means for instructing to turn the chord, and a chord turning type in response to an instruction from the instructing means. And a turning type designating means for automatically and randomly designating a chord represented by the chord information automatically generated by the chord information generating means and turned into a turning type designated by the turning type designating means. An electronic musical instrument comprising: a chord information forming unit that forms chord information representing a turning chord; and a tone signal forming unit that forms a tone signal corresponding to the chord information formed by the chord information forming unit. 4. A chord information generating means for automatically generating chord information representing chords over time, an instruction means for instructing to turn the chord, and a chord turning type in response to an instruction from the instructing means. And a turning type designating means for automatically and randomly designating a chord represented by the chord information automatically generated by the chord information generating means and turned into a turning type designated by the turning type designating means. An electronic musical instrument comprising: a chord information forming unit that forms chord information representing a turning chord; and a memory unit that stores the chord information formed by the chord information forming unit over time.