JPH0736112B2 - Electronic musical instrument - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

The present invention relates to an electronic musical instrument that imparts a reverb effect and a back chorus effect sound to a melody playing sound.

[Prior art]

Conventionally, in this type of device, a melody sound signal is output via a reverb effect circuit including a delay circuit, a filter circuit, and the like.

[Problems to be Solved by the Invention]

However, in the above-mentioned conventional device, the melody sound signal is delayed and is produced as a residual sound, and the frequency characteristic of the sound produced as the residual sound is only slightly changed with time, so that it is rich in variation. However, the reverb effect could not be imparted, and much less the back chorus effect could not be imparted. The present invention has been made to solve the above problem, and an object thereof is to provide an electric musical instrument capable of imparting a reverb effect and a back chorus effect that are rich in musicality.

[Means for Solving the Problems]

In order to achieve the above object, the structural features of the invention according to claim 1 are: a melody sound designating means for outputting a melody sound designating signal for designating a melody sound; and a melody sound designating signal designated in response to the melody sound designating signal. Additional sound designating signal forming means for forming an additional sound designating signal for designating an additional sound having a predetermined pitch relationship with the melody sound, and a melody sound signal corresponding to the melody sound designating signal, and Musical sound signal forming means for forming an additional sound signal corresponding to the additional sound designating signal, and a sound image position for controlling the musical sound signal forming means so that the additional sound designating signal becomes a different sound image position for each designation of the melody sound. And a control means. The structural feature of the invention according to claim 2 is specified by the chord specifying means for specifying a chord, the melody sound specifying means for outputting a melody sound specifying signal for specifying a melody sound, and the chord specifying means. Additional tone designating signal for designating an additional tone consisting of a note of a chord that is not the chord constituting tone having a predetermined pitch relationship with the designated melody tone in response to the constituent tone of the chord and the melody tone designating signal. Additional sound designating signal forming means, a melody sound signal forming channel forming a melody sound signal corresponding to the melody sound designating signal, and a plurality of additional sound signals forming additional sound signals corresponding to the additional sound designating signal. A tone signal forming means including a forming channel, and for each designation of the melody tone,
Allocation means for allocating the melody sound designating signal from the melody sound designating means to the melody sound signal forming channel and sequentially allocating the additional sound designating signal to different additional sound signal forming channels of the plurality of additional sound signal forming channels. And an additional sound output stop control means for stopping the formation and output of the additional sound signals formed and output by the plurality of additional sound signal forming channels when the melody sound is not specified, which is not a constituent sound of the specified chord. Is equipped with. Further, the structural feature of the invention according to claim 3 is that sound image position control means is added to the configuration of the invention according to claim 2.

[Operation and effect of the invention]

In the invention according to claim 1 configured as described above,
When the melody sound is designated by the melody sound designating means,
A melody sound designation signal is output. Further, an additional sound signal for designating an additional sound having a predetermined pitch relationship with the melody sound designated by the additional sound designation signal forming means in correspondence with the designation of the melody sound is output. Then, after the sound image position control means controls the musical sound signal forming means so that the additional sound designating signal output from the additional sound designating means has a different sound image position for each designation of the melody sound, the musical sound signal forming means outputs the above-mentioned melody. The melody sound signal corresponding to the sound signal and the additional sound signal corresponding to the additional sound designation signal are output. Thus, the additional sound signal is formed independently of the melody sound signal, and the pronunciation is controlled so that the sound image position is sequentially changed for each designation of the melody sound.
According to the invention of (1), the additional sound can be maintained in a mode different from that of the melody sound, and the degree of freedom can be increased in the reverb effect and the back chorus effect can be added. Further, in the invention according to claim 2, since the additional sound output stop control means stops the output of a plurality of additional sound signals formed and output at the time of canceling the designation of the melody sound, which is not a constituent sound of the designated chord, the melody. After the designation of the sound is canceled and the pronunciation of the melody sound is stopped, the sound having a dissonant relationship with the harmony is not pronounced. Thus, according to the second aspect of the present invention, the additional sound can be maintained in a mode different from that of the melody, the degree of freedom can be increased in the reverb effect, and the back chorus effect can be added. Music becomes harmonious. Further, according to the invention of claim 3, as in the invention of claim 1, the sound image position of the additional sound is moved every time the melody sound is designated. In addition, music with a sense of spaciousness can be obtained.

EXAMPLE An example of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing the entire electronic musical instrument according to the present invention.
Shows. This electronic musical instrument has a keyboard 10 and an operation panel section 20.
Keyboard 10 is pitch C ₂ ~ C ₇ It consists of multiple keys across. this
For each of these keys, the key code KC is "36" to "96".
All keys are assigned in order of pitch, and all keys play melody.
When used for and pitch C ₂ ~ G ₃ The key to play the chord
Used and pitch G ₃ # ~ C ₇ Key for playing melody
You can switch between when and where. this
Each key on the keyboard 10 is pressed and released in the key switch circuit 10a.
By opening and closing multiple key switches provided corresponding to each
Is detected and the key touch of each key is the key touch detection circuit.
Multiple key touches provided for each key in 10b
It is designed to be detected by a sensor. The operation panel section 20 includes a solo style play operator 21,
Dynamic accompaniment operator 22, rhythm start operator 23, rhythm strike
Up control 24, synchro start operator 25, rhythm selection
Group of control operators 26, tone color selection operator group 27 and other operations
A child group 28 is provided. Solo style play operator 21
Generates additional sounds according to melody performance, chord performance, etc.
Select whether to perform solo style play or not.
It is a control operator. The automatic accompaniment operator 22 performs automatic accompaniment.
This is a manipulator for selectively switching whether to perform or not. Liz
The start operator 23 is an operation to instruct the start of the automatic rhythm.
Is a child. Rhythm stop operator 24 stops automatic rhythm
Is an operator for instructing. The synchro start operator 25
Automatic rhythm sync start operation (all keys on keyboard 10
Before pressing the key, keep the automatic rhythm on standby, and
The automatic rhythm is started in synchronization with the key depression
Control), and the automatic rhythm operates the operator 25
Is set to the standby state. rhythm
The select operator group 26 is used for various types of automatic rhythm and automatic accompaniment.
The type of rhythm is selected. This rhythm type
Is to determine each mode of solo style play.
For details on the rhythm type, refer to the explanation for each mode.
It The tone color selection operator group 27 is used for melody sounds and automatic accompaniment sounds.
Select and specify the type of tone, such as guitar or piano
To do. The other operator group 28 is the volume of the accompaniment sound,
Melody volume, rhythm volume, automatic rhythm volume
This is to variably set the port. Operation of each of these controls
In the operator switch circuit 20a
Opening and closing of multiple operator switches provided correspondingly
It is detected by the action of the storm. These switch circuits 10a, 20a and key touch detection circuit 10b
Is connected to the bus 30, and the rhythm sound signal is sent to the bus 30.
Generation circuit 41, accompaniment sound signal generation circuit 42, melody sound signal generation
Raw circuit 43, tempo oscillator 50 and microcomputer 60
Are connected. The rhythm sound signal generation circuit 41 includes a plurality of percussion sound signal formation channels.
Channel from the microcomputer 60 via the bus 30
The rhythm sound pronunciation control signal supplied by the
A percussion instrument sound signal corresponding to a percussion instrument such as a bass or bass drum
Output. The accompaniment tone signal generation circuit 42 forms a plurality of tone signals
Channel 60, bus 60 to microcomputer 30
In response to the accompaniment sound pronunciation control signal supplied via
Form and output musical tone signals corresponding to musical instruments such as pianos
It The melody sound signal generation circuit 43 is used to form the 0th to 6th musical sound signals.
A channel and a pan control circuit,
The numbering channel is microcomputer 60 to bus 30
Key-on signal KON and key-off signal K supplied via
Depending on OF, the start and stop of the tone signal
Controlled and supplied the 0th to 6th key codes KC
(0) to KC (6), 0th to 6th tone color data TC (0) to TC
(6) and the 0th to 6th volume data VOL (0) to VOL (6)
Music tone with controlled pitch, tone, and volume according to
And output the signal. In addition, each of these tone signal formation
Pitch change control circuit including interpolation circuit in each channel
A path and volume change control circuit is provided to control both of the above.
The circuit consists of 0th to 6th key codes KC (0) to KC (6) and
Only the 0th to 6th volume data VOL (0) to VOL (6) are supplied.
, The pitch and volume of the formed tone signal are
Supply key code KC (0) to KC (6) and volume data VOL
Change control is immediately performed according to (0) to VOL (6). Well
The 0th to 6th key codes KC (0) to KC (6) and the 0th key code
~ Immediately after supplying the sixth volume data VOL (0) ~ VOL (6),
When the interpolation control signal is supplied, both control circuits are
The pitch and volume of the formed tone signal are 0 to
6th key code KC (0) to KC (6) and 0th to 6th volume
The data supplied this time from data VOL (0) to VOL (6)
The smooth change control is performed while interpolating the data. In addition,
When the tune signal is supplied, the pitch change control
The path has a slight pitch of the formed tone signal (several cents to ten
Slide it up or down. The pan control circuit swings the speakers 45a-45c to be sounded.
And the sound volume of each of the speakers 45a to 45c is controlled.
So supplied from the microcomputer 60 via the bus 30
Music signals are output to the output lines L, C, and R according to the pan control signal
It is output for each tone signal forming channel. Na
The generation of the melody sound signal from the microcomputer 60
If no pan control signal is provided on path 43, output lines L, C, R
A tone signal is evenly supplied to. Rhythm signal generation circuit 41, accompaniment sound signal generation circuit 42 and melody
An output circuit 44 is connected to each output terminal of the sound signal generation circuit 43.
The same circuit 44 is provided from each of the signal generation circuits 41 to 43.
Of the signals are mixed and output to the output lines L, C and R respectively.
It In such a case, the rhythm sound signal generation circuit 41 and the accompaniment sound signal
The signal from the signal generation circuit 42 is evenly output to the output lines L, C, and R.
The output lines L, C, R of the melody sound signal generation circuit 43
These signals are output to the output lines L, C, R of the output circuit 44 as they are.
I will be forced. A speaker 45 is connected to each output line L, C, and R of the output circuit 44.
a, 45b, 45c are respectively connected, and the same speaker 45a ~
45c is spatially arranged on the left, center, and right.
It The tempo oscillator 50 is a tempo clock with a period corresponding to 32nd notes.
Clock signal TCLK to the microcomputer 60 as an interrupt signal
, And the cycle of the signal TCLK is
Set by the tempo setting operator in the work group 28 and
Tens supplied from the black computer 60 via the bus 30.
It is decided by the control data. The microcomputer 60 was connected to each of the buses 30.
Program memory 61, CPU 62 and working memory 63
Consists of The program memory 61 is composed of ROM and is shown in FIG. 2A.
And the main program corresponding to the flowchart in Fig. 2B.
System and its subprograms, and the flow chart in Figure 4.
Memory and clock interrupt program
is doing. CPU62 closes the power switch (not shown)
Along with starting the execution of the main program
Repeat the program until the power switch is opened,
Every arrival of tempo clock signal TCLK from tempo oscillator 50
The main program is interrupted and the clock
Interrupt execution of the interrupt program. Working
The memory 63 is composed of RAM, and both can be used for executing the program.
A variable data storage unit that stores various necessary data and a switch
And a data storage unit. The variable data storage section is mainly
Lag data, calculation data, etc. are stored and switch data is recorded.
The memory is inside the key switch circuit 10a and the operator switch circuit 20a.
Is a part for storing the state data of each switch. The bus 30 also has a melody control register composed of RAM.
A chord component note table that is composed of a star group 70 and a ROM.
Bull 81, rhythm pattern memory 82, accompaniment pattern memory
83 and solo style play control data table 90
Has been continued. The melody control register group 70 includes a key code storage unit 71 and a tone color.
It is divided into a data storage 72 and a volume data storage 73.
It The key code storage unit 71 has 0th to 6th key codes KC.
(0) to KC (6) are stored, and each key code KC
(0) to KC (6) are the 0th in the melody sound signal generation circuit 43.
~ Music signal formed by the sixth music signal forming channel
Represents the pitch of each key. The tone color data storage section 72 is
The sixth tone color data TC (0) to TC (6) are stored,
Each tone color data TC (0) to TC (6) generates a melody tone signal
Formed by the 0th to 6th tone signal forming channels in the circuit 43
Represents the tone color of the tone signal to be played. Volume data storage
The section 73 records the 0th to 6th volume data VOL (0) to VOL (6).
Remember that each volume data VOL (0) to VOL (6) is
The 0th to 6th musical tone signal forming channels in the rody tone signal generating circuit 43
Shows the volume of each tone signal formed by the channel.
You The chord constituent sound table 81 is used for chord detection and chord constituent sound search.
The chord with the C note as the root note (example
Major chords (eg majors, minors, augments, etc.)
Note code NC (key) that represents a component sound (for example, C, E, G sounds)
(A chord representing only the note name excluding octave in KC)
Are stored in the form of tables. Rhythm pattern
The memory 82 stores predetermined rhythm pattern data as 1
This is stored for each measure, and there are multiple patterns for each rhythm type.
Each pattern memory is divided into
Specified by tempo count data TCNT (0 to 31)
It has 32 addresses, and each address has a cymbal and a bus.
Percussion instrument sound data representing the percussion instrument to be pronounced, such as dora
Only the number corresponding to the number is stored. The accompaniment pattern memory 83 is
Specified chord performance, accompaniment pattern data such as arpeggio
The data is stored for one bar, the rhythm type and sum
It is divided into multiple pattern memories for each sound type.
In addition, each pattern memory stores tempo count data TCNT (0
~ 31) and each address has 32 addresses.
The semitone interval from the root of all accompaniment notes to be pronounced
The interval data that represents the difference is stored for the number of pronunciations.
ing. Note that the rhythm pattern memory 82 also has
Percussion instrument sounds and accompaniment sounds are also not generated in the playing pattern 83.
Data representing no processing at the address corresponding to the timing
Is remembered. Solo style play control data table 90
Data storage unit 91, tone color data storage unit 92, rhythm compatible pronunciation control
Data storage section 93, accompaniment-corresponding pronunciation control data storage section 94,
It is divided into a turn data storage unit 95 and a pitch data storage unit 96.
Has been. The mode data storage unit 91 is preset according to the rhythm type.
Solo style mode that indicates the solo style play mode name.
Data SSPMD (RHY) (1 to 15 in this embodiment)
Rhythm type data indicating the type of rhythm is stored in correspondence with RHY
is doing. The tone color data storage unit 92 is for each solo style play.
It is determined for each mode and is set in the melody sound signal generation circuit 43.
0 to 6 musical tone signal forming channels
No. 0 to No. 6 tone color data TC0 (MD) to TC6 representing the tone color of the No.
(MD) represents the solo style play mode selected
It is stored in association with the mode data MD. In addition, the above
Use only part of the 0th to 6th tone signal forming channels
Not used in solo style play mode
Tone data regarding the i-th tone signal forming channel
Of course TCi (MD) is not remembered. The rhythm corresponding pronunciation control data storage unit 93 is automatically set by "1".
Addition of additional sound by solo style play only during rhythm movement
Mode that controls generation (hereinafter referred to as rhythm-dependent mode
), And "0" indicates whether the automatic rhythm is active or inactive
Mode that controls the generation of the additional sound regardless of
Below, called rhythm independent mode)
Ray data RSSP (MD) to the selected solo style play
It is stored in correspondence with the mode data MD that represents the i-mode.
It , The accompaniment-corresponding pronunciation control data storage unit 94 is set to "1".
Additional sound by solo style play only during automatic accompaniment
Mode that controls the generation of
), And "0" indicates whether the accompaniment is active or inactive.
Mode for controlling the generation of the additional sound regardless of
Accompaniment style play day, which represents the accompaniment independent mode)
TASP SP (MD), selected solo style play mode
It is stored in association with the mode data MD representing the. The pattern data storage section 95 is used for solo style play.
Sound pattern data of the additional sound
Corresponding to the mode data MD that represents the tile play mode
I remember. The pitch data storage unit 96 is a solo style
Interval data DEG for forming additional sounds used in B.
A mode that represents the selected solo style play mode
It is stored in association with the data MD. Both of these storage units
In 95 and 96, the stored data is the required solo style
Only the ray mode is available.
I will explain it in detail tomorrow. Next, the operation of the embodiment configured as above is described for each flow chart.
Chart based on each solo style play mode
Explained. When the main program power switch is turned on, the CPU 62 will
Start executing the program at step 100, and at step 102
Perform initial setting processing by clearing various registers.
Step 104 until the power switch is opened.
Continue executing the circular process consisting of ~ 190. During such circulation processing, the rhythm start operator 23 is operated.
Then, in step 104, "YES", that is, rhythm start
If it is determined that there is an on event for the switch,
If the rhythm run flag RUN is set to "1" at step 106
In both cases, the tempo count data TCNT is initialized to "0".
To be done. In such a case, the rhythm run flag RUN is set to "1".
Indicates that the automatic rhythm is in operation.
Indicates that it is stopped, and "-1" indicates that the automatic rhythm is waiting.
The tempo count data TCNT is
Repeats from 0 to 31 each time the lock signal TCLK arrives
Since "0" is the initial value,
By the processing of steps 104 and 106, the rhythm start operator 23
The automatic rhythm is controlled to start from the beginning of the bar in synchronization with the operation.
Will be. When the rhythm stop operator 24 is operated, the step
Yes, that is, the rhythm stop switch
It is determined that there is an on event, and at step 110
Rhythm run flag RUN is set to "0". By this
This controls the automatic rhythm stop that was previously active.
It Next, at step 112, the melody sound signal forming circuit 43
All the tone signal forming channels (0th to 6th tone signal types)
Key-off signal KOF is output via bus 30 to the
I will be forced. As a result, all the tone signal forming channels
Since the channel stops forming and outputting the tone signal,
When the rhythm is stopped, the melody sound signal including additional sounds
The formation output is controlled to stop and the melody sound signal generation circuit 43
It is set to the initial state. After the processing in step 112, in step 114
Ilplay flag SSP is "1" and rhythm solo
It is determined whether the tile data RSSP (MD) is "1".
Only when the above two conditions are satisfied, the same step 114
Based on the judgment of "YES" in step 116, solo at step 116
The style play flag SSP is set to “0”. It should be noted that in the determination processing of step 114, the rhythm
Solo style data RSSP (MD), solo style play
Rhythm-compatible pronunciation control data in the control data table 90
By referring to the storage unit 93, the current selection from the storage unit 93 is performed.
Selectable according to the mode data MD that indicates the solo style play mode.
Are read together. In such cases, solo style play
Lag SSP is selected as solo style play by "1"
And rhythm solo style data RSSP
(MD) indicates a rhythm dependent mode with "1", so solo
Rhythm-dependent mode is selected as the style play mode.
If the automatic rhythm is controlled to stop while
Tile play flag SSP is not selected for solo style play
It will be set to "0" indicating the status. It also takes
In this case, all the tone signals in the melody tone signal forming circuit 43
Use formation channel for playing melody on keyboard 10
Melody control register in step 118.
First stored in the tone color data storage unit 72 in the star group 70
~ 6th tone data TC (1) ~ TC (6) is 0th tone data
It is set to TC (0). On the other hand, the solo style play flag SSP
It is set to "0", which indicates the unselected state of the ray, and also an example
E Solo style play flag SSP is solo style play
Even if it is set to “1”, which indicates the selected state of
The tile data RSSP (MD) is "0" and the rhythm independent mode
If it indicates “NO”, it is determined as “NO” in step 114.
Therefore, the processing of steps 116 and 118 is not executed.
, Solo style play flag SSP and 1st to 6th tones
The data TC (1) to TC (6) are maintained in the previous state. When the synchro start operator 25 is operated, the
YES in step 120, that is, the synchro start switch
It is determined that there is an on event related to step 122.
Rhythm run flag RUN indicates that the automatic rhythm is waiting
Set to "-1". When the automatic accompaniment operator 22 is operated, step 124
"YES", that is, the on
It is determined that there is a vent, and in step 126, accompaniment flag A
BC is reversed. That is, the accompaniment hula that was previously "1"
Gu ABC was changed to "0" and the accompaniment function that was previously "0"
Lag ABC is changed to "1". In such a case, accompaniment flag A
BC indicates that the accompaniment is in operation by "1" and by "0"
Since the automatic accompaniment is not in operation, the steps 124 and 126 are executed.
If the automatic accompaniment was previously operated by
The performance is stopped and controlled in synchronization with the operation of the automatic accompaniment operator 22.
And if automatic accompaniment was not working previously, accompany
The performance is controlled to start in synchronization with the operation of the automatic accompaniment operator 22.
It After the processing in step 126, in step 128
All tone signals of key-off signal KOF similar to step 112
The melody sound signal is generated by the output to the formation channel.
The generation of the musical tone signal from path 43 is stopped and
The raw circuit 43 is returned to the initial state. After the processing at step 128, at step 130
Gu ABC is "0" and solo style play flag SSP
Is "1" and accompaniment solo style data ASSP (MD)
Is determined to be "1", the above three conditions are satisfied.
Only when it is determined to be “YES” in step 130
Based on, in step 132 Solo Style Play Flag SSP
Is set to “0”. Incidentally, the determination process of step 130
In theory, the accompaniment solo still data ASSP (MD) is
Accompaniment support in the lossy play control data table 90
By referring to the sound control data storage unit 94, the storage unit
The current selection from 94 is the mode that represents the solo style play mode.
It is read according to the read data MD. In such a case,
Similar to the processing in steps 114 and 116, the processing in step 126 is performed.
The accompaniment flag ABC is set to "0", which indicates the automatic accompaniment stop status.
As a result of changes, accompaniment as solo style play mode
Automatic accompaniment stop control with dependent mode selected
And the solo style play flag SSP will be solo styled.
It will be set to "0", which indicates the non-selected state of Replay.
It Even in such a case, the melody sound signal generation circuit 43
All of the tone signal forming channels in the
Step 134, so that it can be used for playing
To the tone color data storage section 72 of the melody control register group 70.
Stored first to sixth tone color data TC (1) to TC
(6) is set to the 0th tone color data TC (0). On the other hand, by reversing step 126, the accompaniment flag ABC
Set to “1”, which indicates the motion state of the dynamic accompaniment, and is in solo style.
Play flag SSP is not selected for solo style play
Is set to “0”, or the accompaniment solo style
Data ASSP (MD) is "0", indicating accompaniment independent mode
If so, it is determined as “NO” in step 130 and the
Since the processing of steps 132 and 134 is not executed,
Ilplay flag SSP and 1st to 6th tone color data TC
(1) to TC (6) are maintained in the previous state. In addition, one of the rhythm select controls 26 is operated.
Then, in step 136, “YES”, that is, rhythm select
It is determined that there is a switch on event, and the rhythm type
Data RHY corresponds to the operated rhythm select operator.
It is set to the data indicating the rhythm type. Next,
Is the solo style play flag SSP set to "1" in page 140?
It is determined whether or not the flag SSP is “0” and the solo star
If Illeplay is not selected, go to step 140.
Is determined to be “NO” and the program proceeds to step 15 in FIG. 2B.
Proceed to 8. On the other hand, the solo style play flag SSP
If it is “1” and solo style play is selected,
In the same step 140, it is determined to be “YES” and step 142 and thereafter.
The descending process is executed. In step 142, various parameters related to the generation of the tone signal are
Register is cleared, and in step 144, the step
To the all-tone signal forming channel in the same way as on page 112 and 128.
The signal KOF is output. As a result, the melody sound and
Initial setting for additional sound generation by solo style play
Will be decided. Next, in Step 146,
The rhythm type newly set by the processing in step 138
Solo style play control data based on class data RHY
The mode data storage section 91 in the table 90 is referred to
Solo style mode data SSPMD determined according to the type of music
Mode where (RHY) represents the current selected solo style mode
It is set as data MD. Setting of such mode data MD
After setting, in step 148, based on the mode data MD
Tone data in the lossy play control data table 90
By referring to the storage unit 92, by the mode data MD
Of the sounds most suitable for the represented solo style play mode
No. 0 to No. 6 tone color data TC0 (MD) to TC6 (MD) indicating the type
Is read from the storage unit 92 and the data TC0 (MD) to T
C6 (MD) indicates the tone color data in the melody control register group 70.
The memory 72 stores the 0th to 6th tone color data TC (0) to TC (6).
The setting is stored. Note that the 0th to 6th musical tone signals are formed.
Solo style play mode that does not use all of the channels
In this mode, the tone signal formation channels not used
Tone data TCi (MD)
Stored in the tone color data storage section 92 of the data table 90.
Since the same data TCi (MD) does not exist, the melody control register
The setting is not stored in the tone color data storage unit 72 in the group 70. After the processing in step 148, in step 150
Lostile play data RSSP (MD) is "1", and
Rhythm run flag RUN indicates the stop state of automatic rhythm
If it is determined whether it is "0" and the above two conditions are met,
Only when the result is “YES” in step 150.
Then, in step 152, the rhythm run flag RUN is automatically rhythmized.
Is set to "-1" indicating the standby state of. In such a case,
Zum solo style play data RSSP (MD) by "1"
It represents the rhythm dependent mode in solo style play
, Selected by operating the rhythm select operator group 26
The rhythm type is the rhythm-dependent mode of the solo style play described above.
If you specify the
The automatic rhythm is set to standby even if you do not
become. Also, by operating the rhythm select operator group 26
The selected rhythm type is the solo style play rhythm
If you don't specify the system dependent mode, or if the automatic rhythm is already
If it is in the operating state or the standby state, the above step 15
Based on the determination of “NO” in 0, the process of step 152
It is not executed and the flag RUN is maintained at the previous value.
The program proceeds to step 154. In step 154, the accompaniment solo style playday
Data ASSP (MD) is "1" and accompaniment flag ABC is automatic
It is determined whether or not it is “0” indicating the accompaniment stop state, and
Note 2 Only in the case where the conditions are met, go to step 154.
Based on the determination of “YES”, the accompaniment flag is set in step 156.
ABC is set to "1", which represents the operating state of automatic accompaniment. Or
In case of playing, the accompaniment solo style play data ASSP (MD) is
Accompaniment dependent mode in solo style play by "1"
Is displayed by operating the rhythm select operator group 26.
The selected rhythm type depends on the accompaniment of the solo style play.
If you specify the existence mode, the automatic accompaniment will be stopped.
However, the automatic accompaniment is set to the operating state.
Also, it is selected by operating the rhythm select operator group 26.
The rhythm type is the accompaniment-dependent mode of the solo style play.
Mode is not specified, or the automatic accompaniment is already
If it is, the determination of “NO” in step 154 is made.
On the basis of the
The program will continue to run while the ABC is maintained at its previous value.
Prop 158 (Fig. 2B). Also, when the solo style play operator 21 is operated, the
"YES" at step 158, ie Solo Style Place
It is judged that there is an on-vent of the switch, and it goes to step 160.
Then, as in steps 112, 128, and 144, all musical tone signals are formed.
By outputting the key-off signal KOF to the channel,
The melody sound signal generation circuit 43 is set to the initial state. Next
Then, in step 162, the solo style play flag SSP is turned off.
It is turned (“0” to “1” or “1” to “0”) and
In step 164, it is determined whether or not the flag SSP is "1".
It In such a case, as a result of the inversion, solo style play
Flag SSP is “1”, that is, solo style play is selected.
If it is in the locked state, it is judged as “YES” in the same step 164.
Steps 166-176 similar to Steps 146-156 above.
Process, mode data MD, 0th to 6th tone color data
TC (0) to TC6 (6), rhythm run flag RUN and accompaniment
Lag ABC is updated. This makes solo style
Depending on the selected rhythm type, when selecting play
Various data required for solo style play are set. On the other hand, due to the inversion processing in step 162, the solo style
When the play flag SSP becomes "0", the step
It is determined to be “NO” in step 164, and the first to the first in step 178.
Six tone color data TC (1) to TC (6) are the 0th tone color data TC
It is set to (0). This produces a melody sound signal
Formed by the 0th to 6th tone signal forming channels in the circuit 43
The tone color of the tone signal to be played becomes common. If any of the tone selection operation groups 27 is operated, the
"YES" at step 180, that is, the tone selection switch is turned on.
It is judged that there is an event, and in step 182 solo styling
It is determined whether the replay flag SSP is "0".
In this case, solo style play is not selected.
If the flag SSP is “0”, the same in step 182.
Based on the judgment of "YES", in step 184, the 0th to 6th sounds
The color data TC (0) to TC (6) is the tone color selection that has been operated.
Set to the tone data that represents the tone corresponding to the
It On the other hand, if solo style play is selected,
If the lag SSP is "1", it is judged as "NO" in the same step 182.
Since the processing of step 184 is not performed because
0th to 6th tone color data TC (0) to TC (6) are kept at the previous values.
Be held. In addition, any key is pressed or released on the keyboard 10.
Then, in step 186, one of the key switch circuits 10a
It is determined that there is a key release event related to the key switch, and the switch
The processing of the key release event routine in step 188 is actually performed.
Done. Regarding the processing of this key release event routine
Will be described later in detail in terms of each item. Note that pressing on the keyboard
The key release is detected by the keyboard 10 loaded from the key switch circuit 10a.
Key status data for each key of
Key status data stored in the touch data storage section
By comparing the newly detected key with
New key code NKC indicating
Key release key indicating whether it is related to a key release
The lag is used by each program described later. In addition, the volume controls for various tones, tempo controls, etc.
Step 190 for the operation of the other operator group 28
Detection process and setting process of various data according to the detection
Is done. Key Release Event Routine This key release event routine, as described above,
In response to the key press and release in 10, the main program step
188, which is shown in detail in Figure 3.
Then, the execution is started in step 200, and step 202
Determines whether the rhythm run flag RUN is "-1".
To be done. In this case, the automatic rhythm is
If the flag RUN is “−1”, in step 202 above
It is determined to be "YES", and the rhythm run flag is determined in step 204.
RUN is set to "1", which indicates the operating state of the automatic rhythm,
Tempo count data TCNT is initialized to "0"
Then, the program proceeds to step 206. By this
The automatic rhythm that was in the standby state is in the initial state (measure
It will be controlled from the head). Meanwhile, automatic rhythm
Is not in the standby state and the rhythm run flag RUN is set to "-1".
If not specified, “NO” in step 202 above
Based on the determination, the program proceeds directly to step 206.
Can be advanced. At step 206, whether the accompaniment flag ABC is "1"
No, that is, whether automatic accompaniment is in operation
To be done. First, the case where the automatic accompaniment is in operation will be described.
It In this case, the accompaniment flag ABC is set to "1".
Therefore, it is determined as “YES” in Step 206, and Step 206
At 208, a new key representing a newly released key on keyboard 10
It is determined whether the key code NKC is "55" or less.
It This value "55" is pitch G ₃ Corresponding to the pitch G ₃ Is an automatic companion
When playing, the key range of the keyboard 10 is changed to the accompaniment key range and melody key range.
Corresponds to the highest note in the accompaniment key range when using 2 splits
The new key code NKC belongs to the accompaniment key range.
If yes, go to step 208, “YES”.
It is determined that NKC ≤ 55, and in step 210 the new key
Based on the key release key that belongs to the code,
It is determined whether or not the event is a key depression event. In such a case, the event is related to the key depression event.
If so, it is determined as “YES” in step 210, and the
All currently being pressed in the accompaniment key range of keyboard 10 at step 212
A chord is detected based on the key. This chord detection is
All the key combinations in the key are added to the chord composition note table 81.
The ratio with the combination of all chord constituent tones stored for each note
The detected chord is performed by a known method.
The root sound of is stored as root data ROOT
, The detected chord type is type data TYPE
Settings are stored. Also, the event is a key depression event.
If not, it is determined as “NO” in step 210 and the
The processing of step 212 is not executed. This makes the keyboard 10
For each key pressed in the accompaniment key range, a chord is detected and stored.
Will be done. After this chord is detected, in step 214 the solo style play
It is determined whether the a-flag SSP is "1". Now
Lost style play is selected and the flag SSP is “1”
If it is set to “YES” in step 214,
Based on the judgment of, the variable i is the solo style in step 216.
It is set in the mode data MD that represents various modes of play,
Sum by mode specified by the variable i in step 218
After the processing of the sound change routine MDiCHG is read and executed,
At step 220, the processing of the key release event routine ends.
Finish. The processing of the chord change routine MDiCHG for each mode
The items will be described later in detail by dividing the items for each mode.
Also, solo style play is not selected
If the tile play flag SSP is set to “0”,
Based on the determination of “NO” in step 214, step 220
Then, the processing of the key release event routine ends. The keys pressed and released on the keyboard 10 belong to the melody key range.
The new key code NKC is larger than "55"
For example, in step 208, “NO”, that is, NKC> 55.
It is judged that it is a solo style play flag in step 222.
It is determined whether the SSP is "1". Solo star now
Ilplay is selected and the flag SSP is set to "1"
If YES, it is determined to be “YES” in step 222.
In step 224, the 0th key code KC (0)
The key code is set to the NKC value, and at the same step 224
Then, the key touch data of the key related to the new key code NKC is
The 0th volume data VOL taken in from the touch detection circuit 10b
It is set as (0). Next, at step 224, the variable i is the solo style play.
After setting the mode data MD value indicating various modes,
At Step 228, the event on the keyboard 10 is the event key depression event.
Is determined. The event is a key depression event
If it is related to
Based on the judgment of “ES”, at step 230, the setting variable i
The key-on routine MDiKON for each mode specified by
Is executed and the 0th key code is read in step 232.
Do KC (0) is set and stored as the old key code 0KC,
At step 220, the processing of the key release event routine ends.
Finish. Also, if the event is related to a key release event,
If, for example, it is determined to be “NO” in step 228, step 2
At 34, the key by mode specified by the setting variable i
The processing of Frutine MDiKOF is read out and executed,
At step 220, the processing of the key release event routine ends.
It The key-on routine MDiON for each mode and the mode
For the processing of the separate key-off routine MDiOF, refer to each mode.
Each item will be described in detail later. On the other hand, solo style play is not selected
If the tile play flag SSP is set to “0”,
In step 222, it is determined to be "NO", and steps 236 and 238
Is executed, and in step 220, the key release event is performed.
The routine processing ends. Take steps 236,238
Both processes are known processes, and in step 236,
Is the key of the key pressed on the keyboard 10 (new key code NKC).
The 0th to 6th musical tone signal forming channels in the rody tone signal generating circuit 43
The pronunciation assignment process for the channel and the keyboard 10
With the deallocation process of the locked key (new key code NKC)
Is done. In step 238, the pronunciation
No. 0 to No. 6 keys by allocation and deallocation processing
KC (0) to KC (6), 0th to 6th tone color data TC
(0) to TC (0), 0th to 6th volume data TC (0) to TC
(6) (formed by touch data TCH), key-on signal K
ON, key-off signal KOF and other melody sound formation control signals
The 0th to 6th tone signal forming channels of the rody tone generating circuit 43
Supplied to one of the Le. And the melody sound signal is emitted
The raw circuit 43 uses the control signal on each tone signal forming channel.
A tone signal according to the
Since it is supplied to the speakers 45a to 45c,
A musical sound is played according to the performance of the melody range of the keyboard 10.
It Next, if the accompaniment flag ABC is
The case where it is set to "0" will be described. Place
If the result is Step 206, it is determined to be “NO”, and Step 2
The processing after 22 is executed. After this step 222
The reason is the same as in the previous case where the automatic accompaniment is in operation.
So I will omit the explanation, but in this case all keys of keyboard 10
Is used for playing melody, and chords may not be detected.
Yes. Clock interrupt program The clock interrupt program starts from the tempo oscillator 50.
CPU62 of tempo clock signal TCLK (corresponding to 32nd note)
The interrupt is executed in synchronization with the arrival of
Grams are then processed in step 240, as shown in FIG.
Execution is started, and the rhythm run flag RUN is executed in step 242.
Is determined to be "1". In this case, the automatic rhythm is stopped and the rhythm run
If the flag RUN is set to “0”, go to step 242.
Is determined to be “NO”, and the clock-in is performed in step 260.
Execution of the interrupt program ends. Also, if the automatic rhythm is in operation, the rhythm run flag
If RUN is set to “1”, then in step 242
Based on the judgment of "YES", the rhythm pattern is set in step 244.
The memory 82 is referenced and the rhythm type data RHY and
Rhythm pattern specified by Pocount data TCNT
Data is read from the memory 82 and
Is supplied to the rhythm signal generation circuit 41. And Liz
The mud sound signal generation circuit 41 receives the supplied rhythm pattern
The percussion instrument sound signal according to the
To the speakers 45a to 45c.
From, a musical tone corresponding to the percussion instrument sound signal is generated. So
As a result, the rhythm specified by the rhythm type data RHY
An automatic rhythm performance corresponding to the type is performed. Next, in step 246, the accompaniment pattern memory 83 is referenced.
Rhythm type data RHY, tempo count data TCNT
And the accompaniment pattern data specified by the type data TYPE
Data is read from the memory 83 and the data
Is processed according to the root sound data ROOT, and then processed
The generated data is supplied to the accompaniment sound signal generation circuit 42. That
The accompaniment sound signal generation circuit 42 supplies the supplied accompaniment pattern.
The accompaniment sound signal according to the
To the speakers 45a to 45c.
A musical sound corresponding to the accompaniment sound signal is generated from 5c. So
As a result, the rhythm specified by the rhythm type data RHY
Corresponds to the type, and the chord specified on keyboard 10
The corresponding automatic accompaniment performance is performed. After step 246, solo styling is done at step 248.
It is determined whether or not the replay flag SSP is "1".
Solo style play is selected now and the flag SSP
If is set to “1”, the “Y
Based on the judgment of “ES”, the variable i is soloed in step 250.
Set in mode data MD that indicates various modes of tile play
Then, in step 252, the mode specified by the variable i is
The clock routine MDiCLK for each mode is read and executed.
After that, the program proceeds to step 254. In addition,
For the processing of the clock routine MDiCLK for each mode,
The terms are divided for each mode and will be described later in detail. Also solo
Iloplay not selected and solo style play
If Lag SSP is set to "0", in step 248
If NO, the program proceeds to step 254.
Be done. In step 254, the tempo count data TCNT
The data TCNT is incremented by adding "1",
Tempo count data TCNT advanced in step 256
Has reached "32". In such cases,
The computer count data TCNT must still reach "32".
For example, in the same step 256, it is determined as “NO”, and the step 2
At 60, the execution of the clock interrupt program ends.
To do. In addition, the tempo count data TCNT is
When it reaches “32”, it is judged as “YES” in step 256.
Then, in step 258, the same data TCNT is initialized to "0".
Then, in step 260, the clock interrupt
Execution of the program ends. Of steps 254-258
Depending on the processing, the tempo count data TCNT is "0" to "3".
Repeated every time the tempo clock signal TCLK is generated
And then step forward. Explanation of solo style play The following is the formation and production of additional sounds in solo style play.
Let's talk about raw material, but before that,
Reaffirmed about items closely related to ray mode operation
I'll do it. Key-on routine for each mode MDiKON and key-off for each mode
Routine MDiKOF is the step of the key release event routine above.
It is read out and executed in the pages 230 and 234.
If the Leplay flag SSP is "1" and the melody is played
When any key is pressed and released on keyboard 10
And read according to the mode data MD (= i)
To be executed. Further, in such a case, the processing of the above step 224
By reason, the 0th key for the 0th tone signal forming channel
-The code KC (0) and the 0th volume data VOL (0) are the above
It is set for each key pressed, and in the solo style play mode
Indicates that the melody performance on keyboard 10 is given priority to
It The chord change routine MDiCHGG for each mode is
What is read and executed in step 218 of the routine
, The auto accompaniment is working, and the solo style play
Gus SSP is "1" and on keyboard 10 for playing chords
When any key is pressed, the mode data MD
Reading is executed according to (= i). Also, where it takes
In step 212, the root representing the designated chord
The sound data ROOT and the type data TYPE are for the chord.
It is set according to the key press. The clock routine MDiCLK for each mode is
The read routine is executed in step 252
Stuff, with automatic rhythm running and solo style
When the play flag SSP is "1", the tempo clock
It is executed every time the signal TCLK (corresponding to 32nd note) is generated. When the solo style play flag SSP is "1"
For the 0th to 6th tone signal forming channels,
The 0th to 6th tone color data TC (0) to TC (6) of
According to the processing of steps 146, 148, 166 and 168 of the in-program.
Mode of solo style play (corresponding to the rhythm type
It is set every time). Also, steps 150-1
By the processing of 56,170 to 176, the mode type is rhythm dependent.
If the current mode or the accompaniment-dependent mode,
The dynamic rhythm and the automatic accompaniment operating state are forcibly set.
It Specifically, the above steps 150 to 156 and 170 to 176 are performed.
By reason, the rhythm run flag RUN is set to “−1”,
Alternatively, the accompaniment flag ABC is set to "1". However, each
Rhythm type corresponding to solo style play mode, No. 0
~ 6th tone color data TC (0) ~ TC (6), rhythm ramp
About specific data setting of RUN and accompaniment flag ABC
Will be described later. Next, let's move on to the explanation of the actual solo style play. The phone
For sub-musical instruments, many types of solo style play
Although prepared, in the present embodiment, the present invention
Directly related solo style play mode (second solo star
Only the Illeplay mode will be described. 2nd solo style play mode 2nd solo style play mode (MD = 2) is melody key
If the same sound is sequentially pronounced as an additional sound each time
In both cases, the chord structure of the playing chord even if the melody key is released.
The one that keeps sounding the same additional sound as the sound
Is specified when the rhythm type is “Lullaby”.
At the same time, the accompaniment flag ABC is set to "1".
Be done. In addition, in this mode,
The key formation channel is
And the tone color data for the 0th channel.
Data TC (0) is used for toy pianos and channels 1 to 6
The related tone color data TC (1) to TC (6) are those of human voice chorus.
It is set to the data value that represents the timbre. In response to the melody key depression on the keyboard 10, the above step 23
0 (key release event routine) turns on / off key for each mode
Routine MD2KON is read, the routine MD2KON
5A is started in step 400 and steps 402 to 406
Depending on the processing, the pronunciation channel (1 to 3) of the previous additional sound
The final channel data LSTCH representing the
Every time N is executed, that is, each time the melody key is pressed, the value is passed to 1 to 3.
Will be changed sequentially. Next, in step 408, the first and second assigned channel data are
Last channel data LSTCH, LSTCH + 3 values for data AS1 and AS2
Are set respectively, and in step 410, the 1st and 1st AS
AS Key code KC (AS1), K that indicates the pitch of the second additional note
C (AS2) is the 0th keyco, which represents the pitch of the playing melody
Mode KC (0) value and each additional sound
Each volume data VOL (AS1), VOL (AS2) that indicates the amount is
Set to the 0th volume data VOL (0) value that represents the volume of the Roddy sound.
Is determined. Then, at step 412, the performance melody sound, the first AS
Key code KC for the second and second AS
(0), KC (AS1), KC (AS2), tone color data TC (0), T
C (AS1), TC (AS2), volume data VOL (0), VOL (AS
1), VOL (AS2) and each key-on signal KON are melody messages
0th, AS1st and AS2nd in the signal generation circuit 43
Steps are supplied to the tone signal forming channels respectively.
At 414, detune to AS 2nd tone signal forming channel
Signal is output, and in step 416 AS1 and AS2
The pan control signal is output to the tone signal forming channel of the eye.
Then, in step 418, the key-on routine MD2KO for each mode is executed.
The execution of N ends. In such a case, the pan control signal is
As shown in the table, the first to sixth tone signal forming channels
Tones corresponding to the tone signals formed by the speakers 45a-4
This is a control signal indicating which of 5c the sound should be generated. Na
Note that L, C, and R in the table correspond to speakers 45a to 45c, respectively.
It 0th, 1st AS and 1st AS in melody sound signal generation circuit 43
And AS 2nd tone signal forming channel is for each key
In response to the arrival of the ON signal, the formation of musical tone signals is opened.
Output the three tone signals to the output lines L, C and R respectively.
Force In such a case, the 0th tone signal forming channel
The pitch of the tone signal formed by the
Controlled by Do KC (0) and set to playing melody key pitch
And the tone color of the tone signal is the 0th tone color data.
Controlled by TC (0), set to a toy piano tone
The musical sound signal is evenly distributed to the three output lines L, C, R respectively.
Is output. On the 1st AS1 musical tone signal forming channel
The pitch of the musical tone signal formed is the above-mentioned AS1 key code KC.
(AS1) (= KC (0)) controls the performance melody
The key pitch is set and the tone color of the tone signal is
The voice code is controlled by the second tone color data TC (AS1).
The tone signal is set to the ras tone and the tone signal corresponds to the value AS1.
It is output to the force lines L, C, R (see the table above). AS 2nd comfort
The pitch of the tone signal formed in the tone signal forming channel
Is the second AS2 key code KC (AS2) (= KC (0))
Controlled and controlled by the detune signal
Playing melody Key Amount from pitch (several cents to a dozen cents)
Set to a value with pitch changed up or down
The tone color of the signal is based on the second tone color data TC (AS2).
Is set to a human voice chorus tone by
Is output to the output lines L, C, R (see table above) corresponding to the value AS2.
Be done. Further, the volume of each of the musical tone signals is 0th,
AS first and AS second volume data VOL (0), VOL (AS
1), controlled by VOL (AS2)
Set to key touch (touch data TCH). Output to each output line L, C, R of the melody sound signal generation circuit 43.
The musical tone signal is output to the speakers 45a to 45c via the output circuit 44.
The same melody is played from the speakers 45a to 45c.
The sound is a toy piano tone, and the AS1st and AS2nd additions
The sounds are human voice chorus tones that are produced simultaneously at the same volume.
Be done. When a new melody key is pressed on keyboard 10,
Perform the same steps 400 to 418 as described above to play the melody.
The playing sound and the first and second additional sounds are output from the speakers 45a to 45c.
Each is pronounced. In such a case, in steps 402 to 408
Depending on the processing, the first and second keys for each new melody playing key are pressed.
Assigned channel data AS1 and AS2 are 1 to 3 and 4 respectively
Change control is performed one by one for each of the first to second assignments.
As the channel data AS1 and AS2 are changed,
The additional sound is changed to speakers 45c (R) to 45b (C)
As the sound is heard, the second additional sound of AS is
It will be pronounced after being changed to PECA 45b (C) to 45a (L)
Growls As a result, each time the melody key is pressed, AS1
The eye and the sound image of the second additional sound of the AS move. Next, the melody that was pressed on the keyboard 10 as described above.
When the D-key is released, the above steps are performed in response to the release.
Key off by mode in 234 (key release event routine)
When the routine MD2KOF is read, the routine MD2KOF
It starts in step 420 of FIG. 5B and begins in step 422.
0th tone signal forming channel in the rody tone signal generating circuit 43
A key-off signal KOF is output to the switch. This makes it
Stops the generation of the melody performance sound signal that was being generated
From the speakers 45a to 45c,
The pronunciation of the musical tone is stopped. After the processing of step 422, the processing of steps 424, 430 and 432 is performed.
While gradually increasing the variable i from 1 to 3 by reason,
The processing of steps 426 and 428 corresponding to each variable i value is executed.
It In step 426, based on the type data TYPE
Based on the root note data ROOT of the chord constituent note table 81
The chord constituent tones are sequentially calculated by converting the reference results.
And the i-th key code KC (i)
By comparing with the chord constituent tones, the same key code KC
Whether the first additional sound corresponding to (i) is a chord constituent sound
Is determined. Now, if the i-th additional note is not a chord constituent note,
Based on the determination of “NO” in step 426, step 428
At the i-th and i-th + in the melody sound signal generation circuit 43
The key-off signal KOF is sent to the third tone signal forming channel.
It is output respectively. Due to this,
The stop of the generation of the i-th and the i + 3rd additional sound signals
From the speakers 45a to 45c,
The pronunciation of the musical tone is stopped. Also, the i-th additional sound
If is a chord constituent tone, it is determined as “YES” in step 426.
The key-off process in step 428 is executed.
If not, the program proceeds to step 430. So
Then, as a result of stepping the variable i, when the variable i becomes 4,
In step 434, if YES is determined in step 432,
Execution of the mode-specific key-off routine MD2KOF ends.
As a result, the chord structure of the performance chord among the first to sixth additional notes
The pronunciation of only those that make up the sound is continued,
Things will stop sounding each time the melody key is released.
It In addition, in response to the chord pressing on the keyboard 10,
Change chords by mode with 218 (key release event routine)
When the routine MD2CHG is read, the routine MD2CHG
Beginning at step 440 of Figure 5C, steps 442-450
Is executed, and in step 452 the chords for each mode
The execution of the change routine MD2CHG ends. These steps
The processing of steps 422 to 450 is the same as the processing of steps 424 to 432 described above.
And the processing keeps the melody playing in the previous state.
However, when changing the playing chord, the same
Of the first to sixth additional notes,
Only the components that make up the
Will stop sounding. In addition, in step 252 (clock-in interrupt
The clock routine MD2CLK for each mode is read by
When issued, the execution of the routine MD2CLK is executed in the step of FIG. 5D.
Start at step 460, but at step 462 the routine MD
Since the execution of 2CLK is completed,
No substantial treatment is done. As you can understand from this explanation of the operation, this second solo
In tile play mode, the sound is played with a toy piano sound.
Depending on the human voice chorus tone,
Since the 1st to 6th additional tones are continuously produced,
Reverb-like effect and back-chorus effect on playing music
It is granted and enriches the music. In addition, in such a case
Is the pitch control of the additional sound by detune and pan control.
Control and sound generation position control (first to third additional sounds are from the center C to the right
Sounded on the R side, the 4th to 6th additional sounds are emitted from the center C on the left L side.
Sound) enhances the back chorus effect
At the same time, it spreads due to changes in the sound image of the first to sixth additional sounds.
You can get a sense of playing music. Furthermore, the 1st-6th addition
Of the sounds, only those that make up the chord constituents of the playing chord
As the pronunciation continues, a better harmony with the playing chords
To be In the above embodiment, the melody performance sound is output to the speaker.
I made it sound evenly in 45a ~ 45c, but the same melody
I Play the performance sound only from the center (C) speaker 45a.
You may do it. In addition, the volume of the melody sound is added
You may make it a little larger. First to sixth additional sounds (first to sixth tone signal forming channels)
Form sound) in the above pan control
For example, moving from right R to center C in the first to third additional sounds
And moving from the center C to the left L in the fourth to sixth additional sounds
, The first to third additional sounds are moved from the center C to the right R.
And move the fourth to sixth additional sounds from left L to center C
Or the first to third additional sounds and the fourth to sixth additional sounds
Both sounds are moved from the center C to the outside R and L respectively.
Or to move from each outside R, L to the center C respectively
You may Modified Example Next, a modified example of the entire embodiment will be described.
It (1) In the above embodiment, one for normal melody performance
The keyboard range of the multi-tiered keyboard 10 is divided into two according to the operation of the automatic accompaniment operator
And use the divided lower range for playing chords.
The keyboard 10 is divided into two parts in advance,
The lower range is used for playing chords and the upper range is used for
It may be used for playing a roddy. Also, the
Keyboard 10 is the lower keyboard for chord performance and the upper keyboard for melody performance
It may be configured with a two-tier keyboard. (2) In the above embodiment, the duplication in the chord playing key
By pressing several keys at the same time, a combination of the plurality of pressed keys
Depending on the state, refer to the chord constituent note table 81 and specify the specified chord.
The chord root is detected by the chord playing key.
A keyboard that specifies only notes and has a chord type separately
It may be specified by an external operator. In addition,
The highest or lowest note of the rody playing key as the root note of the chord
The number of keys pressed other than those specified, and the number of keys pressed
Specify the chord type according to the type (white key, black key) etc.
You may ask. In addition, other keyboard instruments and other
Using chords specified by the instrument, or automatic playing device
To use chord data representing chords input from
You may. (3) In the above embodiment, the solo style play mode
The melody playing sound produced when
The melody performance is assumed to correspond to the late arrival priority key.
The sound may be the highest note pressed on the keyboard 10. Also,
In solo style play mode, the melody performance sound is
Depending on the performance of the melody on the keyboard 10
A plurality of melody playing sounds may be pronounced.
In such a case, you may have multiple
When the sound signal forming channel is used,
, Any one of the plurality of pressed keys, for example,
The additional tones of the above embodiment are added to the highest tone and the last tone.
You may do it. (4) In the above embodiment, the melody playing sound and addition
The volume of the sound was controlled by touching the keys.
The invention emits both sounds at a constant volume regardless of key touch.
Electronic musical instrument that does not have a touch detection circuit 10b that makes a sound
Can also be applied to.

[Brief description of drawings]

FIG. 1 is an overall block diagram of an electronic musical instrument showing an embodiment of the present invention, and FIGS. 2A, 2B, 3 and 4 are programs stored in the program memory of FIG. 1 and common to various modes. 5A to 5D are flowcharts corresponding to the sub-program related to the second mode which is read and executed by the common program. Explanation of symbols 10 …… Keyboard, 10a …… Key switch circuit, 20 …… Operation panel section, 20a …… Operator switch circuit, 21 …… Solo style play operator, 22 …… Automatic accompaniment operator, 23 …… Rhythm start operator, 24 …… Rhythm stop operator, 26 ……
Rhythm select controls, 27 ...... Tone selection controls, 41
...... Rhythm sound signal generation circuit, 42 ...... Accompaniment sound signal generation circuit, 43 ...... Melody sound signal generation circuit, 50 ...... Temp oscillator, 60 ...... Microcomputer, 61 ...... Program memory, 62 ...... CPU, 63 ...... Working memory, 70 …… Melody control register group, 71 …… Key code storage section, 72 ・ ・ ・
… Sound data storage, 73 …… Volume data storage, 81 ……
Chord composition note table, 90 ... Solo style play control data table, 91 ... Mode data storage section, 92 ... Tone color data storage section, 93 ... Rhythm corresponding pronunciation control data storage section, 94 ... Accompaniment corresponding pronunciation control data Storage unit, 95 ... Pattern data storage unit, 96 ... Pitch data storage unit.

Claims (3)

[Claims] 1. A melody sound designating means for outputting a melody sound designating signal designating a melody sound, and an additional sound having a predetermined pitch relationship with the designated melody sound in response to the melody sound designating signal. Additional sound designating signal forming means for forming an additional sound designating signal, and a musical tone signal forming a melody sound signal corresponding to the melody sound designating signal and forming an additional sound signal corresponding to the additional sound designating signal. An electronic musical instrument comprising: a forming means; and a sound image position control means for controlling the tone signal forming means so that the additional sound designating signal has a different sound image position for each designation of the melody sound. 2. A chord specifying unit for specifying a chord, a melody sound specifying unit for outputting a melody sound specifying signal for specifying a melody tone, a constituent sound of the chord specified by the chord specifying unit, and the melody sound specifying signal. An additional sound designation signal forming means for forming an additional sound designating signal for designating an additional sound consisting of a note of a scale which is not the chord constituent tone having a predetermined pitch relationship with the designated melody sound in response to A musical sound signal forming means including a melody sound signal forming channel forming a melody sound signal corresponding to the melody sound specifying signal and a plurality of additional sound signal forming channels forming an additional sound signal corresponding to the additional sound specifying signal; Each time a melody sound is designated, a melody sound designating signal from the melody sound designating means is assigned to the melody sound signal forming channel. Assigning means for sequentially assigning the additional sound designating signal to different additional sound signal forming channels of the plurality of additional sound signal forming channels; and a plurality of additional sound signal forming channels for canceling the designation of the melody sound. And an additional sound output stop control means for stopping the formation and output of the formed and output additional sound signals which are not the constituent tones of the specified chord. 3. The electronic musical instrument according to claim 2, further comprising sound image position control means for controlling the sound image position of the additional sound signal to a different position for each additional sound signal forming channel.