JP2513014B2 - Electronic musical instrument automatic performance device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic musical instrument of an electronic musical instrument that automatically generates musical tones such as chords and rhythm tones according to a musical performance pattern, and more particularly to improvement of fill-in musical technique. It is a thing.

[Summary of the Invention] The present invention enables the accompaniment keyboard to have a fill-in pattern selection function and a fill-in operator to give a command to start a fill-in pattern, thereby enabling a variety of fill-in performances with simple operations. It is a thing.

[Prior Art] Conventionally, as an autorhythm device capable of playing a fill-in rhythm, a fill-in pattern selection operator for selecting an arbitrary one of a plurality of fill-in rhythm patterns and a fill-in pattern for giving a command to start a fill-in rhythm. It is known to have an operator.

In such an autorhythm device, in order to shift from normal rhythm performance to fill-in rhythm performance, it is necessary to select a desired fill-in rhythm pattern with the fill-in pattern selection operator and then operate the fill-in operator at a desired timing. . For this reason, there is a difficulty in operability, and it is particularly difficult for an unskilled person or the like to perform such an operation while playing the keyboard.

As a technology to facilitate the fill-in operation,
(B) A special fill-in operator is not required by detecting that a key touch is made with a specific strength on the accompaniment keyboard and switching from the normal pattern to the variation pattern (for example, Japanese Utility Model No. 60-16960). (See Japanese Patent Laid-Open Publication), (b) by detecting the touch strength of the fill-in operator and selecting a fill-in rhythm pattern according to the touch strength, which eliminates the need for a dedicated fill-in pattern selection operator (for example, actual opening Japanese Patent Laid-Open No. 62-57300) and the like are known.

[Problems to be Solved by the Invention] According to the conventional technique of (a) above, even if a variation pattern is a fill-in pattern, only a normal pattern is changed to a fill-in pattern in response to a key touch of a specific strength, There is a problem that the fill-in pattern cannot be selected, and the monotony of the fill-in performance cannot be avoided.

Further, according to the above-mentioned prior art (b), the fill-in operator specifies not only the fill-in timing but also the fill-in pattern. Therefore, when operating the fill-in operator, a touch force for selecting a desired fill-in pattern is applied. Must be used. For this reason, there is a problem in that the operation becomes more cautious than simply operating the fill-in operator in consideration of the fill-in timing, and an unsatisfactory operation result is likely to be caused in either the fill-in timing or the fill-in pattern selection.

An object of the present invention is to simplify the fill-in operation without the above problems.

[Means for Solving the Problems] In the first and second automatic performance devices according to the present invention, both (a) an accompaniment keyboard and (b) each time a key is touched on the keyboard, Touch detection means for detecting the touch amount of the key and transmitting touch data representing the touch amount; (c) storage means for fetching and storing the touch data each time the touch data is transmitted from the touch detection means, (D) A storage device storing performance patterns, wherein the performance patterns store a normal pattern and a plurality of fill-in patterns respectively corresponding to a plurality of touch amount ranges, and (e) a command to start fill-in. A fill-in operator for (f) a mode designating means for designating a fill-in mode based on the operation of the fill-in operator, and (g) a storage means stored in the storage means. Determining means for determining to which of the plurality of touch amount ranges the touch amount indicated by the touch data belongs based on the touch data; and (h) the normal pattern before the fill-in mode is designated by the mode designating means. And (i) a tempo pattern selecting means for selecting a fill-in pattern corresponding to the touch amount range judged to belong to by the judging means when the mode specifying means starts to specify the fill-in mode. It is provided with means for generating a clock signal, and (j) performance sound generating means for automatically generating a performance sound signal according to the performance pattern selected by the performance pattern selection means and based on the tempo clock signal.

In the first automatic performance device according to the present invention, the performance pattern selection means belongs to the determination means each time touch data is stored in the storage means even after the start of the specification of the fill-in mode and during the specification of the fill-in mode. It is configured to select a fill-in pattern corresponding to the determined touch amount range.

Further, in the second automatic musical instrument according to the present invention,
The storage unit stores touch data for a plurality of keys touched to specify a chord on the keyboard, and the determination unit makes a determination based on an average value of touch amounts indicated by the touch data for the plurality of keys. Configured to do.

[Operation] According to the above-described first and second automatic performance devices, when the fill-in mode is designated based on the operation of the fill-in operator, the fill-in corresponding to the touch amount is performed based on the key touch immediately before that. A pattern is selected instead of the normal pattern, and the fill-in performance is performed based on this fill-in pattern.

Therefore, the performer can select an arbitrary filly pattern by adjusting the amount of key touches on the accompaniment keyboard, and the simple operation without the complexity of operating the fill-in pattern selection operator on the panel surface. You can enjoy a variety of fill-in performances at. Also, the fill-in operator only needs to be operated in consideration of the fill-in timing, and the content of the fill-in pattern to be selected is closely related to the musical accompaniment of the accompaniment, so the fill-in operator can specify the fill-in pattern together with the fill-in timing. There is also an advantage that an accurate operation can be easily performed as compared with the case of performing.

In the above-described first automatic performance device, the fill-in pattern can be selected according to the key touch amount even during the fill-in performance, and a more varied fill-in performance can be performed.

Further, in the above-mentioned second automatic performance device, in the case of a plurality of key depressions of chords, the touch amounts for a plurality of keys are averaged,
Pattern selection is performed based on the average value. Therefore, if the keys are pressed so that the average values are the same, the same pattern can be selected even if the touch force of each finger varies, and the performer's will can be more faithfully selected in the fill-in pattern. Can be reflected.

[Embodiment] FIG. 1 shows the structure of an electronic musical instrument having an automatic musical instrument according to an embodiment of the present invention. In this electronic musical instrument, a musical tone such as a manual musical tone or an automatic musical tone is generated by a microcomputer. Is controlled by.

Electronic Musical Instrument Structure (FIG. 1) In FIG. 1, a bus 10 has a key switch circuit 12,
Touch sensor circuit 14, switch group 16, central processing unit (CP
U) 18, program memory 20, register group 22, performance pattern memory 24, tempo clock generator 26, tone generators TG _K , TG _R, etc. are connected.

The keyboard KB includes a keyboard for playing a melody and a keyboard for accompaniment. These keyboards are not limited to the two-stage keyboards independent of each other, and a single-tier keyboard may be divided into a melody keyboard area and an accompaniment keyboard area for use.

The key switch circuit 12 includes a large number of key switches provided corresponding to a large number of keys of the keyboard KB,
The key operation information corresponding to each key switch is detected.

The touch sensor circuit 14 includes a large number of touch sensors provided corresponding to a large number of keys of the keyboard KB,
The initial touch amount of the key corresponding to each touch sensor is detected. As each touch sensor, one that detects the speed of the initial touch using a plurality of switches that are sequentially turned on when a key is pressed, one that detects the strength of the initial touch using a pressure-sensitive sensor, etc. are known. You can use one.

The switch group 16 includes a rhythm start switch, a fill-in switch, a rhythm selection switch, a tempo setting switch, a volume setting switch, a tone color selection switch, etc. arranged on the instrument panel surface, and operation information is detected for each switch. It is like this.

The CPU 18 executes various processes for generating musical tones according to the programs stored in the program memory 20, and these processes will be described later with reference to FIGS. 5 and 6.

The register group 22 includes registers used in various processes by the CPU 18, and registers related to the implementation of the present invention will be described later.

The performance pattern memory 24 stores performance patterns related to chords and rhythms for each rhythm type selectable by the rhythm selection switch, and the stored performance patterns are for one measure. As an example, for the rhythm type "disco", performance patterns as shown in FIGS. 2 to 4 are stored.

2 (A) and (B) show normal patterns of chords and rhythms, respectively, and FIGS. 3 (A) and (B).
Shows chord and rhythm transition fill-in patterns, and FIGS. 4A and 4B show chord and rhythm break-in fill-in patterns, respectively. 2 (B), 3 (B) and 4 (B), "HHO" indicates a hi-hat open, "HH" indicates a hi-hat, "SD" indicates a snare drum, and "BD". Represents a bass drum, and "TM ₁ " to "TM ₃ " represent toms 1 to 3, respectively. In the hi-hat timing that is not a hi-hat open (a circle marked with "HHO" is not marked with a circle). , Ring hi-hat close.

The second is the performance pattern corresponding to each rhythm type.
As illustrated in FIG. 4 to FIG. 4, one type of normal pattern is stored for each chord and rhythm, and two types of fill-in patterns (transitional type and break type) are stored for each chord and rhythm. To be done.
The elapsed fill-in pattern corresponds to a touch amount range equal to or less than a predetermined value, and the break-in fill-in pattern corresponds to a touch amount range larger than a predetermined value.

In this embodiment, since a maximum of four tones can be simultaneously pronounced during automatic performance (chord generation), each chord pattern is composed of four series chord constituent tone patterns for both normal and fill-in. The chord constituent tone patterns of each series are such that key information is arranged at each address of 0 to 31 corresponding to the soundable timing. Each key information represents a predetermined key code for each pitch (for example, 36 for C ₂ note), but is set to 0 at a soundable timing (address) at which sound should not be generated. Note that the chord pattern of the C major is stored, and when a root note and / or a chord having a different chord type (for example, D minor) from the C major is specified on the accompaniment keyboard, the pitch of the key information is set. To be changed appropriately and pronounced.

For each rhythm pattern, sound source on / off data is arranged at each address of 0 to 31 corresponding to the sound generation timing for both normal and fill-in. Each sound source on / off data is composed of parallel 8-bit data corresponding respectively to eight percussion instrument generation channels, which will be described later. For each bit, 1 indicates sounding, and 0 indicates non-sounding.

The tempo clock generator 26 generates a tempo clock signal TCL having a frequency corresponding to the tempo set by the tempo setting switch, and this signal TCL is supplied to the CPU 18 as an interrupt instruction.

The tone generator TG _K is for generating a manual performance sound and an automatic accompaniment sound (chord), and has, for example, eight musical tone generation channels 0 to 7,
A tone signal having a pitch designated by a key code is generated for each channel. Of the 0th to 7th tone generation channels, 4th to 7th channels are used for automatic accompaniment (chord generation).

Tone generator TG _R is for generating an automatic rhythm tone, and includes eight percussion sound generation channel as an example, a percussion instrument sound signal in response to the sound instruction based on the sound source on / off data for each channel It is supposed to occur. The eight percussion instrument sound generation channels are
It corresponds to eight percussion instruments such as the bass drum, snare drum, etc. described above with reference to FIGS. 2 to 4, respectively.

The tone signal from the tone generator TG _K and the rhythm sound signal from the tone generator TG _R are supplied to a sound system SS including an output amplifier, a speaker, etc., and converted into sound.

Register Group 22 Of the registers of the register group 22, those relevant to the implementation of the present invention are listed below.

(1) Rhythm run flag RUN ... This is a 1-bit register whose contents are inverted each time the rhythm start switch is operated. 0 indicates rhythm off and 1 indicates rhythm on. When rhythm is on, chords and rhythms are automatically played.

(2) Clock counter CLK ... This counts the pulses of the tempo clock signal TCL from the tempo clock generator 26. In the case of 4 beats, a count value of 0 to 31 is taken within one measure, and becomes 32. It is reset to 0 at the timing.

(3) Key code buffer registers KCBUF _{0 to} KCBUF ₇ ... These registers respectively correspond to channels 0 to 7 of TG _K , and the key code corresponding to the key being touched on the keyboard KB is stored. It is a thing.

(4) Initial touch amount registers ITBUF _{0 to} ITBUF ₇ ... These registers correspond to the _{0th to} 7th channels of TG _K , respectively, and the initial touch data indicating the initial touch amount of the key touched on the keyboard KB. Is to be stored.

(5) Assigned channel register ASS ... This sets the number of the channel to which the key code and initial touch data should be assigned.

(6) Root register ROOT ... This is a chord detection process that detects chords based on the key depression state on the accompaniment keyboard.
The root note data representing the detected root note is stored.

(7) Chord type register TYPE This stores chord type data representing the detected chord type (major, minor, sevens, etc.) in the chord detection process.

(8) Pattern type register FIL ... This is set to any value from 0 to 2. If 0, the normal pattern is selected; if 1, the transitive fill-in pattern is selected; To select the dynamic fill-in pattern. Further, 0 corresponds to the normal mode, and 1 and 2 correspond to the fill-in mode.

(9) Fill-in flag FILREQ ... This is set to 1 in response to the operation of the fill-in switch. When this flag becomes 1, the operation in the fill-in mode is started. In principle, the operation of the fill-in mode is continued until the end of the measure in which the fill-in switch is turned on, and if the fill-in switch is in the on state at the end of the measure, it is continued for one measure, and after that, it is possible to continue similarly. .

(10) Average value register AVGIT ... This is used to set the average value of the initial touch amounts indicated by the initial touch data for a plurality of keys.

Main Routine (FIG. 5) FIG. 5 shows the flow of the processing of the main routine, and this routine is started when the power is turned on or the like.

First, in step 30, an initialization routine is executed, and for example, RUN, FILREQ and FIL are all set to ₀ , and KCBUF _{0 to} KCBUF ₇ and ITBUF _{0 to} ITBUF ₇ are all cleared.

Next, in step 32, the rhythm start switch (S
It is determined whether or not there is an on event in (W), and if there is an on event (Y), the value obtained by subtracting the value of RUN from 1 is set in RUN (inversion of content) in step. As a result, the value of RUN becomes 0 when it is 1 and becomes 1 when it is 0. After this,
Go to step 36.

In step 36, a key-off process is performed to stop the sound generation of channels 4 to 7 of TG _K. And step
Move to 38 and set CLK to 0.

When the process of step 38 is completed or when the determination result of step 32 is negative (N), the process proceeds to step 40 and it is determined whether or not there is a key-on event on the keyboard KB. If the determination result is affirmative (Y), the process proceeds to step 42.

In step 42, if RUN = 1 and there is a key-on event, it is determined whether the key is an accompaniment keyboard. If the determination result is negative (N), it means that the rhythm is off (RUN = 0) or there is a key-on event on the melody playing keyboard, and the routine proceeds to step 44.

In step 44, at 0th 7 channels RUN = 0 if TG _K, RUN = 1 if each searches the vacant channel at 0th three channels TG _K, number of free channels searched To ASS. According to this processing, in the case of RUN = 0 rhythm off, the 0th to 7th
Up to eight melody and accompaniment tones can be simultaneously pronounced using channels. When the rhythm is set to RUN = 1, it is possible to simultaneously generate up to 4 tones using channels 0 to 3, and up to 4 tones using channels 4 to 7. It is possible to generate automatic performance sounds at the same time. After step 44, the process moves to step 46.

In step 46, of KCBUF _{0 to} KCBUF ₇ , the key code buffer register KC corresponding to the channel number of ASS
Set the key code of the key related to the key-on event in BUF (ASS). Then, the process proceeds to step 48, where ITBUF _{0 to} ITBU
Of F _7, and sets the initial touch data representing the initial touch of the key according to the key-on event to the initial touch amount register ITBUF (ASS) corresponding to the channel numbers of the ASS. After this, the process proceeds to step 50.

In step 50, TG _K key-on processing is performed. That is, in TG _K , the data of KCBUF (ASS) and ITBUF (ASS) are assigned to the channel corresponding to the channel number of ASS, and a musical tone signal having a pitch corresponding to the key code of KCBUF (ASS) is generated. The tone color and volume of the tone signal are controlled according to the ITBUF (ASS) initial touch data.

By the way, if the determination result of step 42 is affirmative (Y), it means that the accompaniment key is pressed in the rhythm-on state, and the routine proceeds to step 52.

In step 52, it is determined whether the accompaniment key is the fifth key or more.
If the determination result is affirmative (Y), steps 54 to 72
Is not processed. If the determination result of step 52 is negative (N), it means that the accompaniment key depression is within 4 keys, and the routine proceeds to step 54.

In step 54, one of KCBUF _{4 to} KCBUF ₇ which is empty is searched, and the channel number corresponding to the searched empty is set in ASS. And step 5
Go to 6.

In step 56, the KCBU is performed in the same manner as in step 46 described above.
Set the key code of the key related to the key-on event in F (ASS). Then, move to step 58
Similarly to 48, the initial touch data indicating the initial touch amount of the key related to the key-on event is set in ITBUF (ASS). After step 58, the process moves to step 60.

In step 60, chord detection processing is performed based on the key codes of KCBUF _{4 to} KCBUF ₇ , root data representing the detected root note is set in ROOT, and chord type data representing the detected chord type is set in TYPE. The ROOT and TYPE data are used to determine the pitch of the accompaniment sound according to the chord specified by the accompaniment keyboard when the automatic accompaniment sound is generated based on the chord pattern. After step 60, the process moves to step 62.

In step 62, it is determined whether FIL = 0 (normal mode). If the determination result is negative (N), it means that the fill-in mode (FIL = 1 or 2) has been entered, and the routine proceeds to step 64.

In step 64, the average value of the touch amounts indicated by the touch data in ITBUF _{4 to} ITBUF ₇ is calculated and set in AVGIT. Then, the process proceeds to step 68, and it is determined whether the value of AVGIT is larger than a predetermined value. If this determination result is affirmative (Y), FIL is set to 2 (corresponding to the break-in fill-in pattern) in step 70, and if negative (N), FI is determined in step 72.
Set L to 1 (corresponding to transitive fill-in pattern).

According to the processing of steps 62 to 72, the fill-in pattern can be changed and controlled according to the key touch amount on the accompaniment keyboard during the fill-in performance.

When the processing of step 50, 70 or 72 is completed,
When the determination result of 40 is negative (N), or when the determination result of step 52 or 62 is affirmative (Y), the process proceeds to step 74.

In step 74, it is determined whether or not there is a key-off event on the keyboard KB. If the result of this determination is affirmative (Y), the routine proceeds to step 76, where it is determined whether RUN = 1 and the accompaniment key as in step 42 described above. If the determination result is affirmative (Y), the process proceeds to step 78, and the key code of the key related to the key-off event is cleared from KCBUF _{4 to} KCBUF ₇ .

If the determination result in step 76 is negative (N), the process proceeds to step 80, the assignment is released, and the key-off process of TG _K is performed. That is, if RUN = 0, KCBUF _{0 to} KCBUF ₇ are selected, and if RUN = 1, KCBUF _{0 to} KCBUF ₃ are selected. The tone corresponding to the key code is stopped.

When the process of step 78 or 80 is completed, or when the determination result of step 74 is negative (N), the process proceeds to step 82, and it is determined whether the fill-in switch (SW) has an on event. If the result of this judgment is affirmative (Y), the routine moves to step 84, and FILR is executed to start the fill-in performance.
Set 1 to EQ.

When the process of step 84 is completed or when the determination result of step 82 is negative (N), the process proceeds to step 86 and other processes are performed. Other processing includes rhythm selection processing based on the operation of the rhythm selection switch, tempo setting processing based on the operation of the tempo setting switch, volume setting processing based on the operation of the volume setting switch, and timbre selection processing based on the operation of the timbre selection switch. There is.

After step 86, the process returns to step 32 and the above-described processing is repeated.

Clock Interrupt Routine (FIG. 6) FIG. 6 shows the process flow of the clock interrupt routine, and this routine is started at each pulse (interrupt instruction) of the tempo clock signal TCL.

First, in step 90, is RUN = 1 (rhythm on)?
If the result of this determination is negative (N), the routine returns to the main routine of FIG. That is, when the rhythm is off, the following processing is not performed, so that chords, rhythms, etc. are not automatically played.

If the determination result of step 90 is affirmative (Y), the process proceeds to step 92, and it is determined whether FILREQ = 1 (whether there is a fill-in start command). If the determination result is negative (N), automatic performance of chords, rhythms, etc. is performed based on the normal pattern by the processing of step 108 and subsequent steps.

If the result of the determination in step 92 is affirmative (Y), the process moves to step 94 and it is determined whether the value of CLK is 30 or more (whether it is a period corresponding to a 16th note just before the end of the bar). If this determination result is affirmative (Y), the process proceeds to step 108 and subsequent steps. That is, if the fill-in switch is turned on during a period equivalent to a 16th note immediately before the end of a measure, the process for starting a new fill-in performance is not performed, and the next measure starts from the beginning (when CLK = 0, The routine shown in FIG. 6 is entered and the fill-in performance is started from the time when the determination result of step 94 is negative (N).

If the determination result of step 94 is negative (N), the process proceeds to step 96, and FILREQ is set to 0. And
In step 98, it is determined whether FIL = 0 (normal mode). If the result of this determination is negative (N), step
Move on to the processing below 108. In this case, it means that the player has already entered the fill-in mode, and step 62 of FIG.
The fill-in performance is performed according to the fill-in pattern selected in the process of 72.

If the determination result of step 98 is affirmative (Y), the process proceeds to step 100, and the average value of the touch amounts indicated by the touch data in ITBUF _{0 to} ITBUF ₇ is calculated and set in AVGIT.
Then, the process proceeds to step 102, and it is determined whether the value of AVGIT is larger than a predetermined value. If this determination result is affirmative (Y), FIL is set to 2 (corresponding to the break-in fill-in pattern) in step 104, and if negative (N), step 10
At 6, set FIL to 1 (corresponding to the transitive fill-in pattern). After step 104 or 106, the process proceeds to step 108.

According to the processing of steps 98 to 106, at the start of the fill-in performance, either the elapsed or break-in fill-in pattern is selected according to the key touch amount on the accompaniment keyboard immediately before that.

In step 108, it performs the rhythm sound generation control in TG _R based on the value of the rhythm kind and CLK and FIL. That is, the rhythm pattern to be read is specified based on the rhythm type selected by the rhythm selection switch and the FIL value (one of 0 to 2), and the sound source of the specified rhythm pattern is turned on with the CLK value as the address. Read / OFF data to read TG _R
To send to. As a result, bits corresponding to for example, a high-hat close and bass drum in the sound source on / off data of the reading if was 1, striking Lele sound signal corresponding to the high-hat close and bass drum from TG _R is generated.

Next, in step 110, the rhythm type and CLK, FIL, ROO
Accompaniment pronunciation control is performed by TG _K based on the values of T and TYPE. That is, the chord pattern to be read is specified based on the rhythm type selected by the rhythm selection switch and the FIL value (the same as the FIL value in step 108), and the specified chord pattern is specified using the CLK value as the address. Key information is read, the pitch of the accompaniment to be pronounced is determined based on the read key information and the ROOT and TYPE data, and a key code indicating the pitch is sent to TG _K. In the pitch determination process, if the data of ROOT and TYPE indicates C major, the pitch indicated by the key information related to reading is used as it is as the pitch of the accompaniment tone. The pitch of the accompaniment sound is increased by two semitones by adding the number of semitones 2 (the pitch between C and D) to the pitch indicated by the key information.
In particular, for the third tone for the root tone, the tone is lowered by adding -1. According to the key code indicating the pitch thus determined, the accompaniment sound signal corresponding to the key code is generated from TG _K.

After step 110, the process moves to step 112, and the value of CLK is incremented by 1. Then, in step 114, the value of CLK is 32.
It is determined whether it is smaller (is within a bar). If the determination result is affirmative (Y), the process returns to the main routine of FIG.

When the result of the determination at step 114 is negative (N), it means that the end of the bar (CLK = 32) has been reached, and CLK is set to 0 at step 116. As a result, the performance pattern for one bar as shown in FIG. 2, FIG. 3 or FIG. 4 can be returned to the beginning of the bar for replay. After step 116, the process moves to step 118.

In step 118, it is determined whether the fill-in switch (SW) is on. If the determination result is affirmative (Y), the process returns to the main routine of FIG. After this, CLK
When the routine of FIG. 6 is entered again in the state of = 0, FIL ≠ 0
If so, the determination result of step 98 is negative (N),
Go to step 108. Therefore, the fill-in performance is
Measures continue. If FIL = 0, step 98
The result of the determination is affirmative (Y), and the fill-in performance is started from the beginning of the next bar.

If the determination result in step 118 is negative (N), the process proceeds to step 120 and FIL is set to 0. Then, the process returns to the main routine of FIG. As a result, the fill-in performance ends at the end of the measure, and the automatic performance is started from the next measure based on the normal pattern.

According to the routine shown in FIG. 6, the following fill-in performance is possible. In other words, if the fill-in switch is turned on before the end of a 16th note at the end of a measure, the normal performance changes to the fill-in performance in response to the ON operation, and the fill-in performance changes to the normal performance at the end of the measure. Return to. If the fill-in switch is turned on during a period equivalent to the 16th note just before the end of a certain measure, the normal performance is changed to the fill-in performance at the beginning of the next measure, and the normal performance is returned at the end of this fill-in performance measure. . Therefore, in this case, the fill-in performance is performed from the beginning to the end of one bar. In addition,
In either case, if the fill-in switch is turned on at the end of the fill-in performance measure, the fill-in performance for one measure can be continued.

Modifications The present invention is not limited to the above embodiment,
It can be implemented in various modified forms. For example, the following modifications are possible.

(1) The selection control of the fill-in pattern according to the key touch amount may be performed only for a specific type of chord (for example, a seventh type).

(2) The number of selectable fill-in patterns is not limited to two, and may be more.

(3) Instead of the average value of the touch amounts indicated by the touch data for a plurality of keys, the touch amount range is determined based on the touch amounts of predetermined specific keys (for example, the highest note key, the lowest note key, the root note key, etc.). You may make it determine.

(4) In the embodiment, the chord on the accompaniment keyboard is specified by the fingered chord method in which the note names of the chord constituent notes are specified by a plurality of fingers. A single finger method in which the chord type is designated by the number of keys pressed or the key type (whether white or black) may be adopted.

As described above, according to the present invention, the fill-in pattern is selected according to the key touch amount on the accompaniment keyboard, and the fill-in performance with the fill-in pattern according to the selection based on the operation of the fill-in operator is performed. Since it is started, it is possible to enjoy a variety of fill-in performances with a simple operation.

Further, since the fill-in pattern is selected according to the key touch amount even during the fill-in performance, it is possible to obtain the effect that the fill-in performance can be performed in a more varied manner.

Furthermore, since the fill-in pattern selection is performed based on the average value of the key touch amounts for a plurality of keys for specifying a chord, it is possible to suppress the variation of the selection pattern due to the variation of the touch amount between the plurality of keys. There is also an advantage that it is possible to select a fill-in pattern that faithfully reflects the player's will.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an electronic musical instrument having an automatic musical instrument according to an embodiment of the present invention, and FIGS. 2 (A) and 2 (B) respectively exemplify normal patterns of chords and rhythms. Diagrams, FIGS. 3 (A) and 3 (B) are staff diagrams exemplifying transitional fill-in patterns of chords and rhythms, and FIGS. 4 (A) and 4 (B) are break patterns of chords and rhythms, respectively. A staff diagram illustrating the fill-in pattern, FIG. 5 is a flowchart showing a main routine, and FIG. 6 is a flowchart showing a clock interrupt routine. 10 …… bus, 12 …… key switch circuit, 14 …… touch sensor circuit, 16 …… switch group, 18 …… central processing unit, 20
…… Program memory, 22 …… Registers, 24 …… Performance pattern memory, 26 …… Tempo clock generator, KB ……
Keyboard, TG _K , TG _R ...... Tone generator, SS …… Sound system.

Claims (2)

(57) [Claims] 1. A keyboard for accompaniment, and (b) touch detection means for detecting a touch amount of the key each time the key is touched and transmitting touch data representing the touch amount. (C) storage means for fetching and storing the touch data each time touch data is sent from the touch detection means, and (d) a storage device for storing performance patterns, wherein the performance patterns are normal patterns. And a plurality of fill-in patterns respectively corresponding to a plurality of touch amount ranges, (e) a fill-in operator for instructing the start of fill-in, and (f) a fill-in mode based on the operation of this fill-in operator. And (g) a touch amount indicated by the touch data based on the touch data stored in the storage means, And (h) when the normal pattern is selected before the fill-in mode is designated by the mode designating means and the designation of the fill-in mode is started by the mode designating means. Is a performance pattern selection means for selecting a fill-in pattern corresponding to the touch amount range determined to belong to the determination means, (i) a tempo clock signal generating means, and (j) a performance pattern selection means. A performance sound generation means for automatically generating a performance sound signal according to the performance pattern and based on the tempo clock signal, wherein the performance pattern selection means is configured to operate the fill-in mode even after the start of the fill-in mode. Each time touch data is stored in the storage means, the touch determined to belong to the determination means That it is configured to select the fill-in pattern corresponding to a range automatic performance apparatus for an electronic musical instrument characterized by. 2. A keyboard for accompaniment, and (b) touch detection means for detecting the touch amount of the key each time the key is touched and transmitting touch data representing the touch amount. (C) storage means for fetching and storing the touch data each time touch data is sent from the touch detection means, and (d) a storage device for storing performance patterns, wherein the performance patterns are normal patterns. And a plurality of fill-in patterns respectively corresponding to a plurality of touch amount ranges, (e) a fill-in operator for instructing the start of fill-in, and (f) a fill-in mode based on the operation of this fill-in operator. And (g) a touch amount indicated by the touch data based on the touch data stored in the storage means, And (h) when the normal pattern is selected before the fill-in mode is designated by the mode designating means and the designation of the fill-in mode is started by the mode designating means. Is a performance pattern selection means for selecting a fill-in pattern corresponding to the touch amount range determined to belong to the determination means, (i) a tempo clock signal generating means, and (j) a performance pattern selection means. And a performance sound generating means for automatically generating a performance sound signal based on the tempo clock signal according to the above-mentioned performance pattern, and the storage means touches a plurality of keys touched to specify a chord on the keyboard. The data is stored, and the determination means makes a determination based on the average value of the touch amounts indicated by the touch data for the plurality of keys. Automatic performance apparatus for an electronic musical instrument which is characterized by being composed in Migihitsuji.