JPH02269397A - Electronic musical instrument - Google Patents

Abstract

PURPOSE:To apply a reverberating effect and an effect like back chorus by allocating a designation signal to a melody tone signal forming channel each time a melody tone is designated and successively repeatedly allocating an additional tone designation signal to a different additional tone signal forming channel. CONSTITUTION:Each time the melody tone is designated, the melody tone designation signal is allocated to the melody tone signal forming channel and the additional tone designation signal is successively repeatedly allocated to the different additional tone signal forming channel out of the plural additional tone signal forming channels. Thus, since an additional tone signal is formed independently of a melody tone signal and the generation of the tone is successively controlled each time the melody tone is designated, the additional tone can be maintained in a condition different from that of the melody tone. Thus, the degree of freedom is increased for the effect like reverberation and the effect like the back chorus is applied.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an electronic musical instrument that adds reverb-like effects and backing chorus-like sound effects to melody performance sounds.

[Prior art]

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

[Problem to be solved by the invention]

However, in the above-mentioned conventional device, the melody sound signal is delayed and emitted as a lingering sound, and the frequency characteristics of the sound emitted as a lingering sound are only slightly changed over time, so there is a lot of variation. Not only was it not possible to add a reverb effect, but it was also impossible to add a backing chorus effect. The present invention has been made to address the above-mentioned problems, and its purpose is to provide an electronic musical instrument that can provide a musically rich reverb effect and backing chorus-like effect.

[Means to solve the problem]

In order to achieve the above object, the structural features of the invention according to claim 1 include: a melody sound designating means that outputs a melody sound designation signal designating a melody sound; additional sound designation signal forming means for forming an additional sound designation signal for designating an additional sound having a predetermined pitch relationship with respect to the melody sound; and a melody sound for forming a melody sound signal corresponding to the melody sound designation signal. A musical tone signal forming means comprising a plurality of additional sound signal forming channels forming additional sound signals corresponding to the signal forming channel and the additional sound specifying signal, and a melody sound specifying signal from the melody sound specifying means for each specification of a melody sound. an allocation means for allocating the additional sound designation signal to the melody sound signal forming channel and sequentially and repeatedly allocating the additional sound designation signal to different additional sound signal forming channels among the plurality of additional sound signal forming channels; and a melody sound formed by the musical sound signal forming means. Convert signals and additional sound signals into acoustic signals! , and acoustic conversion means for outputting the sound. Further, the structural feature of the invention according to claim 2 is that the sound image position of the additional sound emitted from the acoustic conversion means of the invention is adjusted for each additional sound signal forming channel in the structure of the invention according to claim 1. The reason is that a sound image position control means is added to control the position of the sound image. Further, the structural feature of the invention according to claim 3 is that, in addition to the structure of the invention according to claim 1, there is also a chord specifying means for specifying a chord, and a chord signal for forming and outputting a chord signal corresponding to the specified chord. When canceling the signal forming means and the melody sound,
The present invention includes additional sound output stop control means for stopping the formation and output of additional sound signals that are not constituent notes of a specified chord among the additional sound signals formed and output by the plurality of additional sound signal forming channels. Furthermore, a structural feature of the invention according to claim 4 is that a message position control means of the invention according to claim 2 is added to the structure of the invention according to claim 3.

[Operation and effects of the invention]

In the invention according to claim 1 configured as above,
When a melody sound is specified by the melody sound specifying means,
This melody sound designation signal is allocated by the allocation means to the melody sound signal forming channel provided within the musical sound signal forming means. Further, in response to the designation of the melody sound, the additional sound designation signal forming means forms an additional sound designation signal for designating an additional sound having a predetermined pitch relationship with respect to the designated melody sound. The additional tone designation signal is sequentially and repeatedly assigned by the assigning means to a different musical tone signal forming channel among the plurality of additional tone signal forming channels provided in the musical tone signal forming means for each designation of each melody tone. Then, the musical sound signal forming means separately forms a melody sound signal corresponding to the melody sound signal and an additional sound signal corresponding to the additional sound designation signal in the assigned melody sound signal forming channel and additional sound signal forming channel. These melody sound signals and additional sound signals are converted into sound signals by the sound conversion means and output. In this way, the additional sound signal is formed independently of the melody sound signal, and the sound generation is controlled sequentially for each designation of the melody sound. It can be sustained in an interesting manner, increasing the degree of freedom in the reverb effect and adding a backing chorus effect. Further, in the invention according to claim 2, the sound image position 1 control means controls the sound image position of the additional sound produced by the acoustic conversion means to a different position for each additional sound signal forming channel,
The additional sound designation signal regarding this additional sound is sequentially assigned to a different musical sound signal forming channel among the plurality of musical sound signal forming channels each time a melody sound is designated. Moving. Thereby, according to the invention according to claim 2, in addition to the effect of the invention according to claim 1, it is possible to obtain performance music with a sense of spaciousness. Further, in the invention according to claim 3, the additional sound output stop control means, when canceling the designation of the melody sound, selects the designated chord from among the additional sound signals formed and outputted by the plurality of additional sound signal forming channels. Since the output of sounds that are not constituent sounds of the chord is stopped, after the designation of the melody sound is canceled and the sound generation of the same melody sound is stopped, sounds that have a different relationship with the chord will no longer be produced. As a result, the above claim 3
According to the invention according to claim 1, in addition to the effect of the invention according to claim 1, the music played becomes harmonious. Furthermore, according to the invention according to claim 4, in the invention according to claim 3, the sound image position of the additional sound moves every time the melody sound is specified, as in the invention according to claim 2. Therefore, in addition to the effect of the invention of claim 3,
You can get performance music with a sense of spaciousness.

【Example】

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a block diagram of the entire electronic musical instrument according to the present invention. This electronic musical instrument is equipped with a keyboard 10 and an operation panel section 20, and the keyboard 10 has pitches C2 to C? Consists of multiple keys over . These 6 keys have a key code of ``36'' as Ai C.
"96" is assigned to each pitch group, and all keys are used for melody performance, and keys ranging from pitch C to G3 are used for chord performance and keys ranging from pitch 01# to Cy. It can be used for playing melodies. The press and release of the six keys of this keyboard 10 are detected by the opening and closing of a plurality of key switches provided in the key switch circuit 10a corresponding to the six keys, and the key touches on each axis are detected by the key touch detection circuit Rob. Detection is performed by II number of key touch sensors provided corresponding to each of the six keys within the keypad. The operation panel section 20 includes a solo style play operator 21.
, automatic accompaniment operator 22, rhythm start tjk 2s
, a rhythm stop operator 24, a synchro start operator 25, a rhythm select operator group 26, a timbre selection operator group 27, and another operator group 28 are provided. The solo style play operator 21 is an operator for selectively switching whether or not to perform a solo style play in which additional sounds are generated in accordance with melody performance, chord performance, etc. The automatic accompaniment operator 22 is an operator for selectively switching whether or not to perform automatic accompaniment. The rhythm start operator 23 is an operator for instructing the start of an automatic rhythm. The rhythm stop operator 24 is an operator that instructs to stop the automatic rhythm. Synchro Star) 11 + Sakuko 25 is an automatic rhythm synchronized start operation (the automatic rhythm is kept in a standby state before all keys on the keyboard 10 are pressed, and synchronized with the press of any key on the keyboard 10). The automatic rhythm is set to a standby state by operating the same operator 25. The rhythm selection operator group 26 is for selecting various rhythm types of automatic rhythm and automatic accompaniment. Note that - this rhythm type determines each mode of solo style play, and the rhythm type will be explained in detail in the explanation section for each mode. The tone selection operator group 27 selects the types of tones of melody sounds and automatic accompaniment sounds, such as guitar.
This allows you to select and specify the tone of a piano, etc. Other operators 28 are used to variably set the volume of the accompaniment sound, the volume of the melody sound, the volume of the rhythm sound, and the tempo of the automatic rhythm. The operation of each of these operators is detected by the opening/closing of a plurality of operator switches provided in the operator switch circuit 20a corresponding to each of the operators and the action of a volume. These switch circuits 10a, 20a and the key tab detection circuit tab are connected to a path 30, which also includes a rhythm sound signal generation circuit 41. Accompaniment sound signal generation circuit 42, melody sound signal generation circuit 43, tempo generator 50
and a microcomputer 60 are connected. The rhythm sound signal generation circuit 41 includes a plurality of percussion instrument sound signal forming channels, and has microconvenience store path 0 to path 3.
A percussion instrument sound signal corresponding to a percussion instrument such as a cymbal or a pass drum is formed and outputted in accordance with a rhythm sound generation control signal supplied through the controller 0. The accompaniment sound signal generation circuit 42 includes a plurality of musical sound signal forming channels, and forms a musical sound signal corresponding to one musical instrument such as a guitar or piano in response to an accompaniment sound generation control signal supplied from the micro combinator 60 via the path 30. Output. The melody sound signal generation circuit 43 includes 0th to 6th musical tone signal forming channels and a pan control circuit, and the 0th to 6th musical tone signal forming channels receive a key-on signal 10) supplied from the microcomputer 60 via the path 30. The start and stop of generation of musical tone signals are controlled according to the key-off signal 10F and the key-off signal 10F.
Key code IC(0)-4C(B), 0th to 6th volume Cheetah TC(0) ~TC(S) and 0th to 6th volume Cheetah VOL(0) ~VOL(@) Forms and outputs musical tone signals whose pitch, timbre, and volume are controlled respectively. Further, each of these musical tone signal forming channels is provided with a pitch change control circuit and a volume change control circuit including an interpolation circuit, and both of the control circuits are connected to the 0th to 6th channels.
When only the key codes EC(0) to IC(8) and the 0th to 6th volume data VOL(0) to VOL(6) are supplied, the pitch and volume of the formed musical tone signal are set to the supplied key code IC(0). )~XC(8) and volume data VOL
(0) to VOL(6)k: Immediately change control accordingly. Also, the 0th to 6th key codes EC(0) to summer c(I
I) and 0th to 6th volume data VOL(0) to vOL
(When the interpolation control signal is supplied immediately after the supply of fi>, both control circuits adjust the pitch and volume of the formed musical tone signal to the previously supplied 0th to 6th key food ICs (0) to
EC (8) and 0th to 6th volume data VOL (0) to V
Smooth change control is performed while interpolating from OL (8) to the data currently supplied. Further, when a buticone signal is supplied, the pitch change control circuit shifts the pitch of the formed musical tone signal slightly (several cents to tens of cents) upward or downward. The pan control circuit connects the speakers 45a to 46C to produce sound.
The allocation is to control the sound volume of each of the speakers 45a to 46c, and a musical tone signal is output according to the pan control signal supplied from the microconvenience store 0 through the path 30 @L, C, R Each musical tone signal forming channel is output separately. In addition, micro combination lecture - evening 60
When a pan control signal is not supplied to the melody tone signal generation circuit 43 from the melody tone signal generating circuit 43, musical tone signals are equally supplied to the output lines C and H. Rhythm signal generation circuit 41. An output circuit 4 is provided at each output terminal of the accompaniment sound signal generation circuit 42 and the melody sound signal generation circuit 43.
4 is connected, and the circuit 44 mixes the signals from each of the signal generating circuits 41 to 43 and outputs the signals from the signal generating circuits 41 to 43.
, R, respectively. In such a case, the signals from the rhythm sound signal generation circuit 41 and the accompaniment sound signal generation circuit 42 are outputs ML, C. melody sound signal generation circuit 43.
The signals from the output lines C and R are output as they are to the output lines C and R of the output circuit 44. Each output line of the output circuit 44, C, R has a speaker 45.
m, 45b, and 45c are connected, respectively, and the speakers 48a to 45c are spatially located at the left, center, and
They are placed on the right. The tempo oscillator 50 supplies a tempo clock signal TCL with a cycle corresponding to the 32nd note ζ to the microconvenience store Taro 0 as an interrupt signal, and the cycle of the signal TCIJ is determined by the tempo setting operation in the other control group 28. the path 30 set by the child and from the micro combinator 60
This is determined by tempo control data supplied via the tempo control data. The microcombi 1-6o consists of a program memory 61, a CPU 62, and a working memory 63, each connected to the path 3o. The program memory 61 is composed of a ROM, and stores a main program and its subprograms corresponding to the flowcharts of FIGS. 2A and 2B,
A clock interwoven program corresponding to the flowchart of FIG. 4 is stored. The CPU 62 starts executing the main program when a power switch (not shown) is closed, and repeatedly executes the program until the power switch is opened. Execution is interrupted and the clock-interrupted program is executed with an interrupt. The working memory 83 is composed of a RAM, and includes a variable data storage section and a switch data storage section that store various data necessary for executing the program. The variable data storage section mainly stores flag data, calculation data, etc.
The switch data storage section is a section that stores state data of each switch in the key switch circuit Ion and the operator switch circuit 20a. Further, the path 30 includes a melody control register group 70 made up of RAM, a chord constituent note table 81, a rhythm pattern memory 82, an accompaniment pattern memory 83, and a solo style play control data table 9o, each made up of ROM. It is connected. The melody control register group 70 includes the key code storage section 11,
It is divided into a tone color data storage section 72 and a volume data storage section F3. The key code storage unit 71 is for storing the 0th to 6th codes IC(O) to We(S), and each key code IC(0) to IC(8) is stored in the melody sound signal generating circuit 43. The key pitches of the musical tone signals formed in the go to sixth musical tone signal forming channels are respectively represented. The timbre data storage section 72 stores 0th to 6th timbre data TC(0) to TC(B
), each tone data TC(0) to τC(
6) is a melody sound signal generation circuit, and a data storage section 73 stores 0th to 6th volume data voL (0) to Maro L (@) in the 0th to 6th musical tone signal forming channels in 43. , each volume data vat, (o) to malo L(@) represent the volume of the musical tone signal formed by the 09th and 6th musical tone signal forming channels in the melody tone signal generation circuit 43, respectively. The chord constituent note table 81 is used for chord detection and chord constituent note search, and is used for chord detection and chord constituent note search.
Note code IIc (in key code EC,
Codes representing only note names (excluding octaves) are stored in table form. Rhythm pattern memory 82
stores one measure of predetermined rhythm pattern data, and is divided into multiple pattern memories for each rhythm type, and each pattern memory is specified by tempo count data TCIIT (0 to 31). It has 32 addresses, and each address stores percussion instrument sound data representing percussion instruments such as cymbals, pass drums, etc. that are to be sounded for the number of sounds to be produced. Accompaniment pattern memory 83
stores predetermined chord performance, accompaniment pattern data such as Alberi 1 for one measure, and is divided into multiple pattern memories for each rhythm type and chord type, and each pattern memory stores tempo count data. T.C.
It has 32 addresses specified by NT (0 to 31), and each address stores interval data representing the semitone interval difference from the root tone of all accompaniment tones to be generated for the number of accompaniment tones to be generated. . In addition, rhythm pattern memory 8
2 as well as the accompaniment pattern 83, data indicating no processing is stored at addresses corresponding to timings at which percussion instrument sounds and accompaniment sounds are not produced. The solo style play control data table 90 is stored in the mode data storage section 91. It is divided into a timbre data storage section 92, a rhythm-based sound generation control data storage section 93, an accompaniment-based sound generation control data storage section 94, a pattern data storage section 95, and a pitch data storage section 96. The mode data storage unit 91 stores solo style mode data SSPMD (RIIY) (1 to 15 in this embodiment) that is predetermined according to the rhythm type and represents the solo style play mode name, and rhythm type data R that represents the rhythm type.
It is stored in correspondence with IIY. Tone data storage
l592 is determined for each solo style play mode and represents the 0th to 6th musical tone signal tone data TCO ( MD) ~ TCII (MD
) are stored in association with mode data MD representing the selected solo style play mode. In addition, in the solo style play mode in which only a part of the 0th to 6th musical tone signal forming channels are used, the tone data T regarding the first musical tone signal forming channel that is not used is
C1 (MD) is naturally not stored. In the rhythm-compatible sound production control data storage unit 93, '1' indicates a mode for controlling the generation of additional sounds by solo style play only during automatic rhythm operation (hereinafter referred to as rhythm-dependent mode), and 'O' indicates automatic rhythm mode. A mode for controlling the generation of the additional sound regardless of whether the
Rhythm style play data R55P (MD) representing a rhythm independent mode (hereinafter referred to as rhythm independent mode) is stored in correspondence with mode data MD representing a selected solo style play mode. The accompaniment compatible pronunciation control data storage unit 94 indicates a mode (hereinafter referred to as accompaniment dependent mode) in which the generation of additional notes by solo style play is controlled only during automatic accompaniment operation by "1", and by "ol" Accompaniment style play data ^SSP (MD) representing a mode (hereinafter referred to as accompaniment independent mode) in which the generation of the additional sound is controlled regardless of the operation/non-operation of automatic accompaniment, representing the selected solo style play mode. The pattern data storage unit 95 stores pronunciation pattern data of additional sounds used in solo style play in correspondence with mode data MD representing the selected solo style play mode. The pitch data storage unit 96 stores pitch data DEG for forming additional notes used in solo style play in correspondence with mode data MD representing the selected solo style play mode. In both storage units 95 and 96, stored data is prepared only for the necessary solo style play modes, which will be explained in detail when each mode is explained.Next, the operation of the embodiment configured as above will be explained in each flow chart. The following describes each solo style play mode.When the main program power switch is turned on, the CPU 62 starts executing the program at step 100 in FIG. 2A, and clears various registers at step 102. After executing the initial setting process, the cycle process consisting of steps 104 to 190 continues to be executed until the power switch is opened. During the cycle process, when the rhythm start operator 23 is operated, the process proceeds to step 104. YESJ, that is, it is determined that there is an on event regarding the rhythm start switch, and the rhythm run flag RUN is set to 1" in step 106.
is set, and the tempo count data TCNT
is initialized to "0". In such a case, the rhythm run flag RUN is "1" indicating that the automatic rhythm is in operation,
0" indicates that the automatic rhythm is stopped, and "-1" indicates that the automatic rhythm is on standby. The tempo count data TCNT repeats steps from 0 to 31 every time the tempo clock signal TCIJ arrives. Since "0" is the initial value, the above-mentioned step. Rhythm start operator 2 is activated by the processing of steps 104 and 106.
The automatic rhythm is controlled to start from the beginning of the measure in synchronization with the operation in step 3. When the rhythm strike 1 switch 24 is operated, it is determined in step 108 that there is an on-event related to the rhythm strike switch, and the rhythm run flag RUN is set to 0'' in step 110. This controls the automatic rhythm that has been in operation until now to stop. Next, in step 112, the melody sound signal form! A key-off signal KOF is outputted to all the musical tone signal forming channels (the 0th to 6th musical tone signal forming channels) of the i1E circuit 43 via the bus 30. As a result, all of the musical tone signal forming channels stop outputting musical tone signals.
When the eye movement rhythm stops, the output of the melody sound signal including the additional sound is controlled to stop, and the melody sound signal generation circuit 43 is set to the initial state. After the processing in step 112, it is determined in step 114 whether the solo style play flag SSP is l'' and the rhythm solo style data RSSP (MD) is 91'', and the above two conditions are satisfied. Only in this case, based on the determination of “YESJ” in step 114, the solo style play flag SSP is set in step 116.
is set to 0''. In the determination process of step 114, the rhythm solo style data RSSP (MD) is determined by referring to the rhythm corresponding sound generation control data storage section 93 in the solo style play control data table 90. Accordingly, the storage unit 9
3 in accordance with mode data MD representing the currently selected solo style play mode. In such a case, the solo style play flag SSP indicates that the solo style play is selected by "1", and the rhythm solo style data R55P (MD) indicates the rhythm dependent mode by "1", so the solo style play mode is selected. When the automatic rhythm is controlled to stop while the rhythm dependent mode is selected, the solo style play flag ss
P will be set to θ'', which represents a non-selected state of solo style play.In addition, in such a case, all musical tone signal forming channels in the melody tone signal forming circuit 43 will be used for melody performance by the keyboard 10. In order to do this, in step 118, the first to sixth tone data TC(1) to TC(S) stored in the tone data storage section 72 in the melody control register group 70 are changed to the zeroth tone data TC(
0). On the other hand, even if the solo style play flag SSP is set to 0'', which indicates that solo style play is not selected, and even if the solo style play flag SSP is set to 1, which indicates that solo style play is selected, the rhythm If the solo style data R35P (MD) is 0'' and represents the rhythm independent mode, it is determined as rNOJ in step 114 and the processes in steps 116 and 118 are not executed, so the solo style play flag S is
SP and 1st to 6th tone data TC(1) to TC(6)
remains in its previous state. When the synchro start operator 25 is operated, it is determined in step 120 that there is an on event related to the synchro start operator 25, and in step 122 the rhythm run flag RUN indicates that the automatic rhythm is on standby. -1''. Also, when the automatic accompaniment operator 22 is operated, step 1 is set to
At step 24, it is determined that there is an on-event related to rYEsJ, that is, automatic accompaniment switch, and at step 126, the accompaniment flag ABC is inverted. In other words, the accompaniment flag ABC, which was previously "lI', is now "
Accompaniment flag A that has been changed to "O" and was previously "Os"
BC is changed to 1''. In this case, the accompaniment flag AB
In C, 1'' indicates that the automatic accompaniment is in operation, and 0'' indicates that the automatic accompaniment is not in operation, so step 124,
By the process of step 126, if the automatic accompaniment was previously operating, the accompaniment is controlled to stop in synchronization with the operation of the automatic accompaniment operator 22, and if the automatic accompaniment was not operating previously, the accompaniment is automatically stopped. The start is controlled in synchronization with the operation of the accompaniment operator 22. After the processing in step 126, in step 128 the key-off signal XOF similar to that in step 112 is output to all tone signal forming channels,
Generation of musical tone signals from the melody tone signal generation circuit 43 is stopped, and the generation circuit 43 is returned to its initial state. After the processing in step 128, it is determined in step 130 whether the accompaniment flag ABC is l″Ol′, the solo style play flag SSP is “1”, and the accompaniment solo style data ASSP (MD) is 1″. Only when it is determined whether or not and the above three conditions are satisfied, step 1 is performed based on the “YES” determination at step 130.
In step 32, the solo style play flag SSP is set to 0''.In the determination process in step 130, the accompaniment solo style data ASSP (MD>) is set to the accompaniment corresponding sound generation control in the solo style play control data table 90. By referring to the data storage section 94, the data is read out from the storage section 94 in accordance with the mode data MD representing the currently selected solo style play mode.In such a case,
Similar to the processing in Steps 114 and 116, the accompaniment flag ABC is changed to 0'', which indicates the stopped state of automatic accompaniment, as a result of the processing in Step 126, and as a result, the accompaniment dependent mode is selected as the solo style play mode. When the automatic accompaniment is controlled to stop in the state, the solo style play flag ssP becomes 0'', which indicates the solo style play is not selected.
will be set to . Also, in such a case, in order to ensure that all musical tone signal forming channels in the melody tone signal generation circuit 43 are used for melody performance on the keyboard 10, in step 134, tone data storage in the melody control regime group 70 is performed. The first to
The sixth timbre data TC(1) to TC(6) are set to the 0th timbre data TC((1). On the other hand, due to the reversal of step 126, the accompaniment flag AB
C is set to "1" indicating the operating state of automatic accompaniment, the solo style play flag SSP is set to O" indicating the non-selected state of solo style play, or the accompaniment solo style data ^SSP (MD) is set. O'', indicating the accompaniment independent mode, in step 130
Since the determination is ``O'' and the processes of steps 132 and 134 are not executed, the solo style play flag SSP and the first to sixth tone color data TC(1) to TC(6) are maintained in their previous states. Further, when any one of the rhythm select operator group 26 is operated, it is determined in step 136 that there is rYEsJ, that is, an on event of the rhythm select switch, and the rhythm type data R11Y corresponds to the operated rhythm select operator. The data is set to represent the rhythm IM. Next, in step 140, the solo style play flag S
It is determined whether or not SP is "1", and the flag SSP is
If "IIO" is not selected and solo style play is not selected, the determination at step 140 is "NO" and the program proceeds to step 158 in FIG. 2B. On the other hand, if the solo style play flag SSP is "t" and solo style play is selected, rYEsJ is determined at step 140, and the processing from step 142 onwards is executed. At step 142, various registers related to the generation of musical tone signals are cleared, and at step 144, a key-off signal KOF is outputted to all musical tone signal forming channels as in steps 112 and 128. This results in
Initial settings are made regarding the generation of melody sounds and additional sounds due to solo style play. Next, in step 146, the mode data storage section 91 in the solo style play control data table 90 is referred to based on the rhythm type data RHY newly set by the process of step 138, and the rhythm type is determined according to the rhythm type. Solo style mode data SSPMD (RHY) is set as mode data MD representing the currently selected solo style mode. After setting such mode data MD, step 1
4g, the timbre data storage section 92 in the solo style play control data table 90 based on the mode data MD.
By referring to , the 0th to 6th tone data TCO<MD) to TC6(M
D) is read from the storage unit 92 and the data TCO
(MD) to TC6 (MD) are melody control register group 7
The timbre data storage unit 72 in 0 is set and stored as 0th to 6th timbre data C(0) to TC(6). In addition, in the solo style play mode that does not use all of the O-th to sixth musical tone signal forming channels, the tone color data TCI (MD
) is not stored in the timbre data storage section 92 in the solo style play control data table 90, the same data C1 (MD) is also not set and stored in the timbre data storage section 72 in the melody control register group 70. After the processing in step 148, in step 150, the rhythm solo style play data R55P (MD) is
1" and the rhythm run flag IIIN is 0", which indicates an automatic rhythm stop condition. Based on this, in step 152, the rhythm run flag RUN indicates the automatic rhythm standby state.
11'. In such a case, since the rhythm solo style play data RSSP (MD) indicates the rhythm dependent mode in solo style play by l'', the rhythm type selected by the operation of the rhythm select operator group 26 is the rhythm dependent mode of the solo style play. If you specify , the automatic rhythm will be set to the standby state even if you do not operate the synchro start operator 25.Also, if the rhythm type selected by operating the rhythm select operator group 26 is If the rhythm-dependent mode of solo style play is not specified, or if the automatic rhythm is already active or in standby, step 150
Based on the "NO" determination in step 1, the process of step 152 is not executed and the program proceeds to step 154 with the flag RAIN maintained at the previous value. In step 154, the accompaniment solo style play data ASSP (MD) is l'', and the accompaniment flag A
It is determined whether or not BC is "0" indicating the stopped state of automatic accompaniment, and only when the above two conditions are satisfied, the accompaniment flag ABC is set in step 156 based on the determination that it is rYEsJ in step 154. is set to t'', which represents the operating state of automatic accompaniment. In such a case, accompaniment solo style play data ^SSP (
MD) indicates the accompaniment dependent mode in solo style play by 1'', so if the rhythm type selected by operating the rhythm select operator group 26 specifies the accompaniment dependent mode in the solo style play, the automatic accompaniment is Even in the stopped state, the automatic accompaniment is set to the movement mode.Furthermore, if the rhythm type selected by operating the rhythm select operator group 26 does not specify the accompaniment dependent mode of the solo style play. , or if automatic accompaniment is already in operation, based on the "NO" determination in step 154, the process in step 156 is not executed and the accompaniment flag ABC remains at the previous value. The program continues to step 158 (Figure 2B). Also, when the solo style play operator 21 is operated,
At step 158, it is determined that YES4, that is, there is an on event of the solo style play switch, and at step 160, the key-off signal
By outputting , the melody sound signal generation circuit 43 is set to the initial state. Next, in step 162, the solo style play flag SSP is inverted (from "O" to 1" or from 1" to O"), and in step 164, it is determined whether or not the flag SSP is 1". Ru. In this case, as a result of the reversal, if the solo style play flag SSP becomes 1'', that is, the solo style play is selected, it is determined that rYEsJ is selected in step 164, and
Steps 166- similar to steps 146-156 above;
Through the process 176, the mode data MD, the 0th to 6th timbre data TC(0) to TC6(6), the rhythm run flag RtlN, and the accompaniment flag ABC are updated and set. Thereby, when solo style play is selected, various data necessary for solo style play are set according to the selected rhythm type. On the other hand, if the solo style play flag SSP becomes θ'' due to the reversal process in step 162, the determination in step 164 is "NO", and step 178
The first to sixth timbre data ↑C(1) to TC(8) are set to the 0th timbre data TC(0). As a result, the tone of the musical tone signals formed by the 0th to 6th musical tone signal forming channels in the melody tone signal generation circuit 43 becomes common. Further, when any one of the timbre selection operator groups 27 is operated, it is determined in step 1.80 that there is an on event of rYEsJ, that is, the timbre selection switch, and step 182
In step 182, it is determined whether the solo style play flag SSP is +θ''. In this case, if solo style play is not selected (and if the flag SSP is nO'', Based on the judgment of ``YESJ'', the 0th to 6th timbre data TC is sent to STEP 184.
(0) to TC(a) are set as tone color data representing the tone corresponding to the operated tone color select operator. On the other hand, if solo style play is selected and the flag SS
If P is "1", it is determined as rNOJ in step 182 and the process in step 184 is not performed, so the θth to sixth tone data TO(Q) to TC(6) are set to the previous values. Retained. Further, when any key is pressed or released on the keyboard 10, it is determined in step 18G that there is a press/release event regarding any key switch in the key switch circuit 10s, and the press/release event in step 188 is determined. The key release event routine processing is executed. The processing of this key press/release event routine will be described in detail later in separate sections. Note that the detection of pressed and released keys in IIW is based on the 6th key of the keyboard 10 taken from the key switch circuit 10m.
This is done by comparing the key state data of the key with the past key state data stored in the switch data storage section in the working memory 63, and the new key code NKC representing the newly detected key is determined. , a press Mll indicating whether the detection is related to a key press or am.
The a flag is used by each program described below. Furthermore, regarding the operation of the other operator group 28 consisting of volume controllers, tempo controllers, etc. for various musical tones, step 1
At 90, a detection process and a process of setting various data according to the detection are performed. Event Rune This key press/release event routine, as described above, #!
The program is executed at step 188 of the main program in response to the key press and release at step 10.As shown in detail in FIG. Lag RLIN is '-1'
It is determined whether or not. In this case, if the automatic rhythm is in the standby state and the flag RtlN is -1'', it is determined in step 202 that it is rYEsJ, and in step 204 the rhythm run flag RUN is set to 1'', which indicates the operating state of the automatic rhythm. and the tempo count data TCMT is initialized to rOJ, and the program proceeds to step 206. As a result, the automatic rhythm in the standby state is controlled to start from the initial state (the beginning of the measure). On the other hand, if the automatic rhythm is not in a standby state and the rhythm run flag ROM is not set to 11'', the program proceeds directly to step 206 based on the determination of ``NOJ'' in step 202. In 206, the accompaniment flag ABC is “1”
In other words, it is determined whether automatic accompaniment is in operation. First, a case where automatic accompaniment is in operation will be explained. In this case, since the accompaniment flag ABC is set to 1'', the determination in step 206 is "rYES", and in step 208, the keyboard 10 is newly pressed lltg!
It is determined whether the new key code NKC representing the updated key is "55" or less. This value "55" corresponds to pitch 63, and the pitch G! corresponds to the highest note of the accompaniment key range when the key range of the keyboard IO is divided into two parts, an accompaniment key range and a melody key range, during automatic accompaniment operation, and the new key code NKC corresponds to the highest note in the accompaniment key range. If it belongs, it is determined in step 208 that “YESJ, that is, N electric C≦55, and the new key code N
Press about KC! Based on the key flag, it is determined whether the event on the keyboard 10 is a key press event. In this case, if the event is related to a key press event, the step 2101c is determined to be YES, and the step 212 detects a chord based on all keys currently being pressed in the accompaniment key range of the keyboard IO. This chord detection is performed by a known method by comparing all the key combinations being pressed with all the combinations of chord constituent notes stored for each chord in the chord constituent note table 81. in,
The root note of the detected chord is set and stored as root note data ROOT, and the type of the detected chord is set and stored as type data TYPE. Further, if the event is not a key press event, in step 210
The determination is NOJ, and the process of step 212 is not executed. As a result, each time a key is pressed in the accompaniment key range of the keyboard 10, a chord is detected and stored. After detecting such a chord, it is determined in step 214 whether or not the solo style play flag SSP is 1''.Currently, solo style play is selected and the flag SSP is set to 1''.
is set to 1'', the variable 1 is set in step 216 based on the determination with rYEsJ in step 214.
is set in the mode data MD representing various modes of solo style play, and in step 218 the processing of the mode-specific chord change routine MDiCIG specified by the variable is read and executed, and then in step 220 the key pressed and released is Processing of the event routine ends. Note that the processing of the mode-based chord change routine MDIC[lG will be described in detail later in separate sections for each mode. Further, if solo style play is not selected and the solo style play flag SSP is set to 0'', based on the determination of "NO" in step 214, the step 220 executes the key press/release event routine. Processing ends. Also, ji! The key pressed and released in l1xo belongs to the melody key range, and the new key code N summer C is "55"
If it is larger, the steerer 208 determines that "NOJ, that is, NEC>55," and the process proceeds to step 222.
It is determined whether the solo style play flag SSP is "1" or not. Now, if solo style play is selected and the flag SSP is set to 1'', based on the determination of YESJ in the same step 222, the step 224 will output the 0th key code [C ( 0) is set to the new key code 1ffc value, and the same step 22
At step 4, the key tab data of the key related to the new key code NEC is fetched from the touch detection circuit Rob and set as the 0th position data YOL(O). Next, in step 224, after the expansion variable 1 is set to the mode data l value representing various modes of solo style play,
The steering wheel 228 determines whether the event on the keyboard 1o is a key press event. If the event is related to a key press event, based on the determination "rYES" at step 228, the process of the mode-specific key-on routine MDIKON specified by the setting change/fail strictness is read out and executed at step 230. Ste 1
At step 232, the 0th key code IC(0) is set and stored as the old key code 0 summer C, and at step 220, the processing of the key press/release event routine is completed. Further, if the event is related to the 1lIII event, it is determined as rNOJ in step 228, and in step 234, the processing of the mode-betsu-off routine MDiIOF specified by the setting variable 1 is read and executed. At step 220, the processing of the key press/release event routine ends. The processing of the mode-specific key-on routine M old ON and the mode-specific key-off routine MDIOF will be described in detail later in separate sections for each mode. On the other hand, if solo style play is not selected and the solo style play flag SSP is set to wO1', the determination in step 222 is "NO", the processing in steps 236 and 238 is executed, and the 22
At 0, the processing of the key press/release event routine ends. Both of the steps 236 and 238 are known processes, and in step 236, the Oth to No. The process of assigning sound to the six musical tone signal forming channels and the key released on the same keyboard IO (
A new key code N[C] allocation release process is performed. Further, in step 238, the O-th to sixth key code ICs are
(0) to IC(6), Oth to 6th tone data rc<o>
~TC(0), Oth to 6th volume data TC(0)~TC
(8) Melody sound formation control signals such as (formed from touch data), key-on signal KON, and key-off signal rOF are supplied to any of the 0th to 6th musical sound signal formation channels of the melody sound generation circuit 43. Ru. Then, the melody sound signal generation circuit 43 forms a musical sound signal in each musical sound signal forming channel according to the control signal and supplies it to the speakers 45a to 45e via the output circuit 44. Musical tones are produced according to the performance of the melody key range of the keyboard IO. Next, a case where the automatic accompaniment is not in operation and the accompaniment flag ABC is set to "o" will be described. In such a case, it is determined as jNOJ in step 206, and the processing from step 222 onwards is executed. This step 2
The processing from 22 onwards is the same as in the case described above when automatic accompaniment is in operation, so the explanation will be omitted, but in this case, all the keys on the keyboard IO are used to play the melody, and chords may be detected. do not have. Kuro Type - Butto Program The Kurobu Interabt program uses the tempo clock signal TCL from the tempo oscillator 50 (corresponding to 32nd notes).
As shown in FIG. 4, this program starts execution at step 240, and at step 242, the rhythm run flag RUN is set to 11111. It is determined whether or not. In such a case, if the automatic rhythm is in a stopped state and the rhythm run flag RUN is set to "0", the determination at step 242 is "NO", and the state block 26G executes the execution of the crofter interlab program. Execution ends. If the automatic rhythm is in operation and the rhythm run flag R[IN is set to "lI'," the rhythm pattern memory 82 is referenced in step 244 based on the determination that rYEsJ is in step 242. Rhythm type data RHY and tempo count data TCNT
The rhythm pattern data specified by is stored in the same memory 82.
At the same time, the data is supplied to the rhythm signal generation circuit 41. Then, the rhythm sound signal generation circuit 41 forms a percussion instrument sound signal according to the supplied rhythm pattern data and supplies it to the speakers 45a to 45c via the output circuit 44, so that the percussion instrument sound is output from the speakers 45a to 45C. A musical tone corresponding to the signal is produced. As a result, an automatic rhythm performance corresponding to the rhythm type specified by the rhythm type data RY is performed. Next, in step 246, the accompaniment pattern memory 83 is referred to, and the accompaniment pattern data specified by the rhythm type data RIIY, tempo count data TCNT, and type data TYPE is read from the memory 83, and the data is converted into root note data. After being processed according to R00T, the processed data is supplied to the accompaniment sound signal generation circuit 42. Then, the accompaniment sound signal generation circuit 4
2 forms an accompaniment sound signal according to the supplied accompaniment pattern data and sends it to a speaker 45!1 via an output circuit 44.
~45C1i: Since it is supplied, speakers 45a to 45c
A musical tone corresponding to the accompaniment tone signal is emitted from the accompaniment tone signal. As a result, automatic accompaniment performance is performed that corresponds to the rhythm type specified by the rhythm type data R1IY and also corresponds to the chord specified on the keyboard 10. After the processing in step 246, it is determined in step 248 whether the solo style play flag SSP is 11111 or not. If solo style play is currently selected and the flag SSP is set to "1", the variable i is set to select various modes of solo style play in step 250 based on the determination with rYEsJ in step 248. In step 252, the process of the mode-by-mode routine MDiCIJ specified by the variable amount is read out and executed, and then the program proceeds to step 254. Note that the processing of the mode-specific clock routine MDiCIJ will be described in detail later in separate sections for each mode. Also, if solo style play is not selected and the solo style play flag S
If SP is set to O'', in step 248 r
The determination is NOJ, and the program proceeds to step 254. In step 254, tempo count data TCN
By adding rlJ to T, the data TC is incremented, and in step 256 it is determined whether or not the tempo count data 708 has reached "32". In such a case, the tempo count data TCNτ is still “3”.
2" has not been reached, the answer is "NO" at step 256.
”, and the execution of the clock-interrupted program ends at step 260. Further, when the tempo count data TCNT reaches "32" due to the sidewalk, it is determined in step 256 that it is rYEsJ, the same data TCNT is initialized to "0" in step 258, and then in step 260 the clock Execution of the included program ends. Such steps 254-26
8, the tempo count data TCNT becomes "0".
” to “31”, and is repeatedly incremented every time the tempo clock signal TCIJ is generated. Below, we will explain the formation and generation of additional sounds in solo style play, but before doing so, we will reconfirm matters closely related to the operation of this solo style play mode. The mode-specific key-on routine VDilON and the mode-specific key-off routine MDIKOF are read and executed in steps 230 and 234 of the above-described key press/release event routine. When any key is pressed or released in step 10, mode data MD (-1)
The data is read and executed accordingly. In addition, in such a case, by the process of step 224, the 0th key code EC(0) and the Oth volume data VOL(0) for the 0th musical tone signal forming channel are set for each key press, and the solo In the style play mode, the melody performance on the keyboard 10 is given priority to the last single note. The mode-specific chord change routine MDICIIG is read and executed by the chip 218 in the key press/release event routine when automatic accompaniment is in operation, the solo style play flag SSP is 1'', and the chord performance is Therefore, when any key is pressed on the keyboard 10,
Reading is executed according to mode data MD(-1). Further, in such a case, through the process of step 212 described above, 100 pieces of root note data representing the specified chord and type data TYPE are set in accordance with the key depression for the chord. The mode-specific clock routine MDiCIJ is read and executed in step 252 of the clock included routine, and when the automatic rhythm is in operation and the solo style play flag SSP is "1", the tempo clock signal Executed every time a TOLE (corresponding to a 32nd note) occurs. Further, when the solo style play flag SSP is 1'', the Oth to 6th tone data TC(0) to TC(6) for the 0th to 6th musical sound drop formation channels are as follows:
Step 146°148.16 of the above main program
8,168, settings are made for each solo style play mode type (determined according to the rhythm type). Further, by the processing of steps 150 to 156 and 170 to 176, when the mode type is rhythm dependent mode or accompaniment dependent mode, the operating states of automatic rhythm and automatic accompaniment are forcibly set. Specifically, through the processes of steps 150 to 156 and 170 to 176, the rhythm run flag R11l is set to "-1" or the accompaniment flag ^Be is set to #111. However, the rhythm types that correspond to each solo style play mode,
Specific data settings for the 0th to 6th tone color data TC(0) to TC(a), rhythm run flag R11N, and accompaniment flag ABC will be described later. Next, we will move on to an explanation of the actual solo style play mode. Although many types of solo style play are available for the electronic musical instrument, in this embodiment, only the solo style play mode (second solo style play mode) directly related to the present invention will be described. 2nd Loss Ile Play Mode The second solo style play mode (MD-2) sequentially sounds the same note as an additional note each time a melody key is pressed, and the chord that is played continues even when the melody key is released. The accompaniment flag ABC is set to "1" so that the same additional tones as the chord constituent tones continue to be produced, which is specified when the rhythm type is "Lullaby", for example. Further, in this mode, the 0th to 6th musical tone signal forming channels are used for pressed keys and additional sounds on the keyboard 10, and the tone data TC(0) regarding the θth channel is transmitted to the toy piano to the first The tone color data TC(1) to IC(6) regarding the ~6th channel are set to data values representing the tone of a human voice chorus. When the mode-specific key-on routine MD2KON is read out in step 230 (key press/release event routine) in response to a melody key depression on the keyboard 10, the routine MD21ON is started in step 400 of FIG. 5A, and steps 402-- Through the process of 406, the final channel data LSTC11 representing the sound generation channels (1 to 3) of the previous additional sound is sequentially changed from 1 to 3 each time the routine MD21ON is executed, that is, each time the melody key is pressed. be done. Next, in step 408, the final channel data LSTC is added to the first and second allocated channel data ^St, ^S2.
II, LSTCH+3 values are set respectively, and in step 41G, each key code EC(ASI>, IC(A32
) together represent the pitch of the melody note played, the 0th key code I
In addition to being set to the C(0) value, each volume data VOL (ASI), VOL (, AS
The Oth volume data VOL represents the volume of the melody sound played by Riga.
(0) value. Then, step 4121 trowel performance melody sound, No. A5
Each key code IC (0), 1fC (ASI), IC (AS2) related to the 1st and A32nd additional notes, respectively.
), each tone data TC(0), TC(ASI), T
C (AS2), each volume data vot(o). VOL (ASI), VOL (AS2), and each key-on signal KQI4 are supplied to the 0th, A31st, and AS 2nd musical tone signal forming channels in the melody tone signal generation circuit 43, respectively, and in step 414, the AS2
A tune signal is output to the 82nd musical tone signal forming channel, and in step 416, a pan control signal is output to the ASI and 82nd musical tone signal forming channels.
At step 41B, the key-on routine MD2 for each mode is
Execution of WON ends. In such a case, the pan control signal transmits the musical tone corresponding to the musical tone signal formed by the first to sixth musical tone signal forming channels to the speaker 4, as shown in the table below.
This is a control signal indicating which one of 5a to 45c is to be used to generate sound. In addition, in the table, L, C, and R are speakers 45a to
45c, respectively. LSTCH123456 Subika RR+CCCC+LL <Table> Each of the 0th, ^St, and AS 2nd musical tone signal forming channels in the melody tone signal generation circuit 43 starts forming musical tone signals in response to the arrival of each key-on signal. and output the three musical tone signals, C, R
Output to each. In such a case, the pitch of the musical tone signal formed by the 0th musical tone signal forming channel is controlled by the 0th key code IC(0) and set to the pitch of the performance melody key, and the timbre of the musical tone signal is set to the pitch of the performance melody key. It is controlled by the 011th tone data ↑C(0) and set to a toy piano tone, and the musical tone signal is transmitted through three output lines,
The signals are output equally to C and R respectively. The pitch of the musical tone signal formed by the A51st musical tone signal formation channel is the above-mentioned ^S1 key code IC (A51) (fable I
C(0)), the pitch of the performance melody key is set, and the tone of the musical tone signal is controlled by the A31st tone data TO(ASI) and set to the human voice chorus tone. The signal is the output line corresponding to the value ASI, C. R (see table above). The pitch of the musical tone signal formed in the A82nd musical tone signal forming channel is the AS2 key code IC (AS2) (-IC (0)
), and the pitch is set to a value that is slightly changed (several cents to tens of cents) above or below the pitch of the melody key by controlling the pitch of the melody key, and the timbre of the same musical tone signal is Said A82nd timbre data τ
C (AS2) and set to a human voice chorus tone, and the musical tone signal is output from the output line corresponding to the value AS2, C,
R (see table above). Further, the volume of each musical tone signal is the 0th and A31st.
th and A82nd volume data VOL(0), V
It is controlled by OL (AS2) and set to the key touch (touch data TCH,) of the melody performance axis. Each output line of the melody sound signal generation circuit 43 is output to C.R. The musical tone signals are supplied to each of the speakers 45a to 45c via the output circuit 44.
From 5c onwards, the melody performance sound is a toy piano tone, and the A81st and A82nd additional tones are a human chorus tone and are simultaneously sounded at the same volume. Also, when a new melody key is pressed on the keyboard 10,
By processing steps 400 to 418 similar to those described above, the melody performance sound and the first and second additional sounds are transmitted to the speakers 463 to 463.
They are pronounced from 45c onwards. In such a case, through the processing of steps 402 to 408, the first and second assigned channel data ^S1. ^
S2 is sequentially changed by 1 to 1 to 3 and 4 to 6, respectively, and the first and second assigned channel data ^S1.
With the change of AS2, the A31st additional sound is changed to the speakers 45c (R) to 45b (C) and is sounded, and the A32nd additional sound is output from the speakers 45b (C) to 45a. (L) and is now pronounced. As a result, the sound images of the A81st and A32nd additional sounds move each time the melody sound key is pressed. Next, when the melody key that has been pressed as described above is released on the keyboard IO, in response to the key release, the mode-specific key-off routine D2 [ When OF is read out, the routine MD21 [OF is started at step 42G in FIG. 5B, and at step 422, the melody sound signal generation circuit 43
Key-off signal EOF to the 0th musical tone signal forming channel in
is output. As a result, the generation of the melody performance sound signal that has been generated until now is controlled to stop, and the speaker 46
! From I to 45c, the sound generation of musical tones corresponding to the musical tone signals is stopped. After processing such step 422, step 424.43
While increasing variable 1 sequentially from 1 to 3 by processing 0,432, steps 426 and 4 according to each variable 1 value are performed.
28 processes are executed. In step 426, based on the type data TYPE (reference to the chord constituent note table 81 and root note data RO)
By converting the reference result based on OT, the chord constituent tones are calculated sequentially, and the first key code IC (1
) and the calculated chord constituent notes, it is determined whether the first additional note corresponding to the key food IC (1) is a chord constituent note. Now, if the first additional note is not a chord constituent note, based on the determination of "NO" in step 426, the process proceeds to step 428, in which the first and 1+3rd notes in the melody sound signal generation circuit 43 are A key-off signal [OF is output to each musical tone signal forming channel. As a result, the generation of the first and t+a-th additional sound signals that have been generated up to now is controlled to be stopped, and the sound generation of the musical tones corresponding to the musical tone signals from the speakers 45a to 45c is stopped. Also,
If the first additional note is a chord constituent note, step 4
26, the key-off processing in step 428 is not executed, and the program proceeds to step 430. Then, as a result of the footpath of variable 1, when the variable becomes 4,
At step 432, the determination is ``YES'', and at step 434, execution of the mode-specific key exchange routine MD2KOF is completed. As a result, among the first to sixth additional sounds,
Only the notes that make up the chord components of the played chord continue to be produced, and the other notes stop producing every time the melody key is released. Further, when the mode-specific chord change routine MD2CHG is read out in step 218 (key press/release event routine) in response to the 13th chord key press on the keyboard IO, the routine MD2CHG is executed in step 440 in FIG. 5C. The process is started, steps 442 to 450 are executed, and
At step 452, the chord change routine MD2 for each mode is
CIIQ execution ends. These steps 442
The processing in steps 450 to 450 is the same as the processing in steps 424 to 432, and even if the melody performance is maintained in the previous state, when the playing chord is changed, the first to fourth chords are changed as in the case described above. Among the six additional tones, only those constituting the chord constituent tones of the played chord continue to be produced, and the other tones are stopped. In addition, in Step 252 (Crobuquin Interabut Program) described above, you can also create a Lobcru routine MD2CL for each mode.
When K is read out, execution of the routine MD2CIJ is started at step 4θ0 in Fig. 5D, but since execution of the routine MD2CLX is ended at step 462, no substantial processing is performed in the routine MD2CLK. Not done. As can be understood from the above explanation of the operation, in this second solo style play mode, the first to sixth additional tones in the human voice chorus tone are continuously produced in response to the melody performance sound produced in the toy piano tone. As the sound continues, a reverb-like effect and a backing chorus-like effect are added to the performance music, enriching the music. In such a case, the pitch and sounding position of the additional notes are controlled by the button, -on and pan controls (the first to third additional notes are from center C to right R).
11, and the 4th to 6th additional notes are pronounced to the left of center C), the Pa.1 chorus-like effect is further enhanced, and at the same time, the sound image of the 1st to 6th additional notes is Changes can create expansive performance music. Furthermore, among the first to sixth additional tones, only those constituting the chord constituent tones of the played chord continue to be produced, so that better harmony with the played chord can be achieved. In the above embodiment, the melody performance sound was made to be produced evenly by the speakers 45a to 45e, but
The same medium day performance sound may be produced only by the center (C) speaker 45a. Also, the volume of the melody sound may be set to be a little thicker than the additional sound. For example, instead of moving from the right R to center C in the first to third additional sounds and moving from center C to the left in the fourth to sixth additional sounds, the first to third additional sounds are moved to the center. C to the right R and move the 4th to 6th additional sounds to the left to center C, or both the 1st to j11!3 additional sounds and the 4th to 6th additional sounds are moved from center C. 6. It may be moved to the outside @R, L respectively, or it may be moved from each outside R, L to the center C. [Beard] Next, a modification of the above embodiment as a whole will be described. ( 1) In the above embodiment, the key range of the single-stage keyboard 10 for normal melody performance is divided into two according to the operation of the automatic accompaniment operator, and the divided lower key range is used for chord performance. However, it is also possible to divide the keyboard 10 into two parts in advance, so that the lower keyboard area is always used for playing chords and the upper keyboard area is used for playing melodies. The keyboard may be configured with a two-tiered keyboard consisting of a lower keyboard and an upper keyboard for playing melody. The specified chord is detected by referring to the chord constituent note table 81 according to the combination state of the plurality of keyed keys. may be specified by a separately provided operator other than a keyboard.Furthermore, the highest or lowest note of the melody playing key is specified as the root note of the chord, and the number of other pressed keys, The type of chord may be specified depending on the type of key pressed (white key, black key), etc.Furthermore, chords specified from other keyboard instruments and other musical instruments may be used, Alternatively, chord data representing chords input from an automatic performance device may be used. However, the melody performance sound may be the highest note pressed on the keyboard 10. Also, in the solo style play mode, the melody performance sound does not have to be a single note. , a plurality of melody performance sounds may be generated in response to the melody performance on the keyboard IO.A plurality of musical tone signal forming channels may be used even in the solo style play mode. The additional tone of the above embodiment may be added to any one of the plurality of keys, for example, the highest note or the last note. (4) In the above embodiment, the volume of the melody performance sound and the additional sound is controlled by the touch of the key, but the present invention makes the rain sound sound at a constant volume regardless of the touch of the key. It can also be applied to electronic musical instruments that do not have the touch detection circuit 10b.

[Brief explanation 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. FIGS. 5A to 5D are flowcharts corresponding to subprograms related to the second mode read and executed by the common program. Explanation of symbols 1O...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--e rhythm select operator group, 27... Tone selection operator group, 41... Rhythm sound signal generation circuit, 42... Accompaniment sound signal generation circuit,
43... Melody sound signal generation circuit, 50... Tempo oscillator, 60... Microcomputer, 61...
Program memory, 62...CPU. 63... Working memory, 70... Melody control 8 register group, 71... Key code storage section, 72...
- Tone data storage section, 73...Volume data storage section, 8
DESCRIPTION OF SYMBOLS 1... Chord composition note table, 90... Solo style play control data table, 91... Mode data storage section, 92... Tone data storage section, 93... Rhythm compatible sound production control data storage section, 94...accompaniment compatible sound production control data storage section, 95...pattern data storage section, 9
6... Pitch data storage section.

Claims (4)

[Claims] (1) A melody sound designating means for outputting a melody sound designation signal that designates a melody sound, and for designating an additional sound having a predetermined pitch relationship with respect to the designated melody sound in response to the melody sound designation signal. an additional sound designation signal forming means for forming an additional sound designation signal; a melody sound signal forming channel for forming a melody sound signal corresponding to the melody sound designation signal; and a melody sound signal forming channel for forming an additional sound signal corresponding to the additional sound designation signal. musical tone signal forming means comprising a plurality of additional sound signal forming channels; and each time the melody sound is specified, a melody sound designation signal from the melody sound designation means is assigned to the melody sound signal formation channel; an allocation means for sequentially and repeatedly allocating the melody sound signal and the additional sound signal formed by the musical sound signal forming means to different additional sound signal forming channels among the plurality of additional sound signal forming channels; An electronic musical instrument characterized by comprising a sound converting means for outputting sound. (2) The electronic musical instrument according to claim 1, further comprising sound image position control means for controlling the sound image position of the additional sound produced by the acoustic conversion means to a different position for each of the additional sound signal forming channels. Characteristic electronic musical instruments. (3) chord designation means for designating a Japanese book; chord signal formation means for forming and outputting a chord signal corresponding to the designated chord; and melody sound designation means for outputting a melody sound designation signal for designating a melody sound; additional sound designation signal forming means for forming an additional sound designation signal for designating an additional sound having a predetermined pitch relationship with respect to the designated melody sound in response to the melody sound designation signal; and the melody sound designation signal. and a plurality of additional sound signal forming channels that form an additional sound signal corresponding to the additional sound designation signal; The melody sound designation signal from the melody sound designation means is assigned to the melody sound signal forming channel, and the additional sound designation signal is sequentially repeated to different additional sound signal formation channels among the plurality of additional sound signal formation channels. an allocation means for allocating; and an additional sound output stop for stopping the formation and output of additional sound signals that are not constituent sounds of the designated chord among the additional sound signals formed and output by the plurality of additional sound signal forming channels when the designation of the melody sound is canceled; a control means; and an acoustic converting means for converting the chord signal formed by the chord signal forming means, the melody sound signal and the additional sound signal formed by the musical tone signal forming means into an acoustic signal, and outputting the acoustic signal. An electronic musical instrument characterized by (4) The electronic musical instrument according to claim 3 is provided with a sound image position control means for controlling the sound image position of the additional sound produced by the acoustic conversion means to a different position for each of the additional sound signal forming channels. Characteristic electronic musical instruments.