JPH01193799A - Automatic rhythm playing device - Google Patents

Abstract

PURPOSE:To improve the playing effect by operating an operator to automatically switch a first rhythm pattern to a second rhythm pattern synchronously with the beat start timing just after the operation timing. CONSTITUTION:A fill-in signal FiS outputted from a fill-in control circuit 8 is applied to a rhythm pattern memory 1. A pattern in the address designated by fill-in pattern designating information Fn from a fill-in pattern designating switch circuit 6 can be read, and rhythm pattern pulses already read out from the address designated by rhythm selecting information Rn from a rhythm selecting switch circuit 5 are switched to the rhythm pattern (a fill-in pattern or a roll pattern) corresponding to fill-in pattern designating information Fn. Thus, rhythm sounds essentially consisting of a drum solo or rhythm sounds due to a beating of a snare drum are emitted from a speaker 16 inserted of rhythm sounds based on rhythm selecting information Rn from the rhythm selecting switch circuit 5.

Description

[Detailed description of the invention] The present invention relates to an automatic rhythm performance device.

Generally, conventional automatic rhythm performance devices play one measure or two measures.
It is structured so that the rhythm of a measure is repeated repeatedly. Therefore, in such a conventional automatic rhythm performance device, the rhythm performance becomes very monotonous, which is not desirable in terms of performance.

This invention has been made in view of the above-mentioned circumstances, and is an automatic rhythm performance device that changes the rhythm performance by inserting a drum solo-based rhythm or a rhythm consisting of repeated hits of a snare drum during or before automatic rhythm performance. The purpose is to provide

When inserting a drum solo-based rhythm or a rhythm consisting of repeated snare drum hits during an automatic rhythm performance, the problem is how to create harmony or continuity with the automatic rhythm when inserting this rhythm.For example, fill-in select. When controlling the insertion of a drum solo-based rhythm or a rhythm consisting of repeated snare drum hits using a switch, if the configuration is such that the drum solo-based rhythm or rhythm consisting of repeated snare drum hits is inserted at the same time as the fill-in select switch is turned on, this The insertion rhythm and the automatic rhythm may become incongruous or discontinuous. This occurs because the rhythm insertion does not coincide with the start of a beat or measure in the automatic rhythm.

In order to eliminate this inconvenience, it would be possible to press the fill-in select switch at the same time as the start of a beat or measure, but in reality such an operation is difficult.

In addition, the timing of returning from the inserted drum solo-based rhythm or snare drum repeated rhythm to the original automatic rhythm should match the end of the measure to ensure harmony or continuity with the following automatic rhythm. This is important in order to ensure continuity with the automatic rhythm that follows, especially when inserting a drum solo-based rhythm or a rhythm consisting of repeated hits of a snare drum as an intro.

An object of the present invention is to enable fill-in rhythm performance to be performed automatically in synchronization with the beat or measure by simply operating a controller at any timing during rhythm performance, and to perform fill-in rhythm performance. The goal is to make it possible to extend any small part by repeating one-touch operations.

The automatic rhythm performance device according to the present invention includes a pattern memory, an operator, a detection means, a storage means, a clock generation means, a timing instruction means, a pattern specification means,
It has an erasing means and a rhythm sound generating means.

The pattern memory stores first and second rhythm patterns that are different from each other regarding a desired rhythm,
For example, the first rhythm pattern is a normal rhythm pattern, and the second rhythm pattern is a fill-in rhythm pattern.

The operator is for controlling the designation of the rhythm pattern, and is comprised of, for example, a self-resetting pushbutton switch.

The detection means detects the operation of the operator and sends operation information.

The storage means captures and stores the operation information from the detection means.

The clock generating means generates a tempo clock signal according to a given tempo.

The timing instructing means instructs the beat start timing for each beat of the rhythm based on the tempo clock signal from the clock generating means, and also instructs the start timing of the beat for each measure of the rhythm! This indicates the i-head timing.

The pattern specifying means specifies a rhythm pattern to be read from the pattern memory, and is configured as follows.

That is, each time the timing instruction means instructs the beat start timing, it is checked whether the operation information from the detection means is stored in the storage means, and if the operation information is stored, the first start timing is synchronized with the beat start timing. specifying a second rhythm pattern in place of the second rhythm pattern, and providing that no operation information from the detection means is stored in the storage means after this specification, and the measure beginning timing specified by the timing instruction means after the specification. The first rhythm pattern is designated in place of the second rhythm pattern in synchronization with the second rhythm pattern.

Further, in such a pattern specifying means, after specifying the second rhythm pattern instead of the first rhythm pattern, if the operation information from the detecting means is stored in the storage means, the second rhythm pattern is specified. The designation of the second rhythm pattern is continued even after the bar start timing instructed by the timing instruction means after the specification of the second rhythm pattern, and the second rhythm pattern is synchronized with the bar start timing instructed by the timing instruction means after the small hundred head timing. the first rhythm pattern instead of the second rhythm pattern.
Specify the rhythm pattern.

Here, the measure beginning timing that is instructed by the timing instruction means after specifying the second rhythm pattern is not limited to the first timing that is instructed after the second rhythm pattern is specified, but may be the timing that is specified after that. If Z qR is specified, a fill-in rhythm performance of up to two measures can be performed.

The same thing can be applied to the measure start timing that is specified after continuing the second rhythm pattern specification.If this small WJ start timing is the second one after the continuation starts, it will last up to 4 measures. It becomes possible to perform fill-in rhythms.

The erasing means is for erasing the stored operation information from the storage means after the pattern designation means examines and examines the storage contents of the storage means at the designated timing every time the beat start timing is designated by the timing designation means.

The rhythm sound generating means automatically generates a rhythm sound signal in accordance with the rhythm pattern specified by the pattern specifying means by reading out the rhythm pattern from the pattern memory based on the tempo clock signal.

According to the configuration of the present invention described above, when the operator is operated in a one-touch manner at an arbitrary timing while the rhythm performance is in progress, the rhythm pattern changes from the first rhythm pattern to the second rhythm pattern in synchronization with the start of the beat immediately after the operation timing. The second rhythm pattern automatically switches to the first rhythm pattern, and then automatically switches from the second rhythm pattern to the first rhythm pattern in synchronization with the beginning of the first (or some) measure, and The insertion performance of is performed from the beat start timing to the end of the bar to which it belongs (or for a plurality of bars including this bar).

Therefore, according to this invention, there is no need to turn on/off switches in consideration of synchronization with beats or measures, and even beginners can enjoy a variety of rhythm performances very easily with just one-touch operation. There are advantages. Furthermore, after continuing to specify the second rhythm pattern, the second rhythm pattern is switched to the first rhythm pattern in synchronization with the beginning of the measure, so playing the inserted rhythm can be done by simply repeating the one-touch operation. It also has the advantage of being able to extend any small part.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The automatic rhythm performance device according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the automatic rhythm playing device of the present invention.

In FIG. 1, a rhythm pattern memory 1 stores a plurality of rhythm patterns and a plurality of types of fill-in patterns and roll patterns corresponding to various rhythms.

Rhythm patterns include patterns for controlling rhythm sounds (percussion instrument sounds), chord patterns for controlling automatic chord sounds, bass patterns for controlling automatic bass sounds, and arpeggios for controlling automatic arpeggio sounds. Contains Mi-patterns, etc., each with a memory capacity of 2
It is a measure. Further, the fill-in pattern is a rhythm pattern mainly consisting of a drum solo, and the roll pattern is a rhythm pattern consisting of repeated hits of a snare drum. The storage capacity of this fill-in pattern and roll pattern is one measure.

The beat counter 2 is driven by a tempo pulse TP generated from a tempo oscillator 4. Tempo pulse oscillator 4
The oscillation station wave number is varied by the frequency adjustment variable resistor 4a, and the generated tempo pulse TP determines the tempo of this rhythm performance.The counted value of the 0 beat counter 2 corresponds to one bar, and When counted, it overflows and outputs a bar pulse Ci4. The contents TC3 and TC4 of the top two pits of this beat counter 2 represent the number of beats.

The bar counter 3 is driven by the bar pulse Ci4 output from the beat counter 2, and counts the number of bars.

The parallel bit outputs T Co to T Ca of the beat counter 2 and the first bit output Qo of the bar counter 3 are applied to the rhythm pattern memory 1 as a dynamic address signal.

The reason why the first bit output Qo of the bar counter 3 is used as the dynamic address signal for the memory 1 is related to the fact that the rhythm pattern corresponding to each rhythm is stored in the rhythm pattern memory 1 for two bars each. are doing. In other words, the first bit output Qo of measure counter 3
When Qo is "0", the address for the first half of the two-bar rhythm pattern is designated, and when Qo is "l", the address for the second half of the rhythm pattern is designated.

The rhythm selection switch circuit 5 includes a plurality of switches corresponding to each rhythm, and by turning on any one of the switches, it generates a plurality of bits of rhythm selection information Rn indicating the corresponding rhythm. This rhythm selection information Rn
is used for addressing in the rhythm pattern memory 1.

The fill-in pattern designation switch circuit 6 includes a plurality of switches for selecting fill-in patterns and roll patterns. When any of the switches is turned on, the fill-in pattern designation switch circuit 6 outputs fill-in pattern designation information Fn of multiple bits indicating the fill-in pattern or roll pattern corresponding to the turned-on switch. This fill-in pattern designation information Fn is added to the rhythm pattern memory l and is used to designate the address of the fill-in or roll pattern.

The fill-in control circuit 8 is for controlling the generation of a fill-in pattern or a roll pattern. Details of the fill-in control circuit 8 are shown in FIG.

In FIG. 2, a fill-in select switch 81 is arranged on an operation panel section (not shown) of the electronic musical instrument. The fill-in select switch 81 is a self-resetting switch that is turned on when pressed and automatically turned off when released. The foot switch 83 is operated with the foot, and when the fill-in foot switch select switch 82 provided on the panel section is turned on, it becomes a signal generator, and has the same function as the fill-in select switch 81. The select switch 82 is a button-on-off type switch that is turned on when pressed and turned off when pressed again. Further, the foot switch 83 is a self-resetting type switch.

The fill-in control circuit 8 shown in FIG. 2 generates a fill-in signal FiS for controlling insertion of a fill-in pattern or a roll pattern based on the operation of a fill-in select switch 81 or a fill-in foot switch select switch 82 and a foot switch 83.

The following describes the operation when inserting a rhythm based on a fill-in pattern or roll pattern during automatic rhythm play (hereinafter referred to as running fill-in mode) and the operation when inserting a rhythm based on a fill-in pattern or roll pattern immediately before the start of automatic rhythm play. The operation (hereinafter referred to as intro fill-in mode) is shown in Figures 1 and 2.
Each case will be explained separately according to the diagram.

When the fill-in mode rhythm start switch ST is off during running, the output signal of the start switch ST is "0", and as a result, the rhythm stop signal 5TOP is over 11 degrees. This rhythm stop signal 5TOP is added to the load force of the beat counter 2 and bar counter 3, and all bits of the beat counter 2 and bar counter 3 are loaded to "1".

When the rhythm start switch ST is turned on, the rhythm running signal RUN becomes "1", the load input to the beat counter 2 and the measure counter 3 is canceled, and the beat counter 2 and the measure counter 3 are enabled to perform counting operations. In addition, the tempo oscillator 4 is reset and starts operating by the differential pulse output from the differentiating circuit 9 which takes the rising edge differential of this signal RUN, and the beat counter 2 counts the differential pulse applied via the OR circuit ORI. The content overflows and the bar pulse Ci4 is output, and all bits become "O".At this time, the bar counter 3 counts the bar pulse Ci4 and all bits become "O", which becomes 0.
The parallel bit output TCo"TCa of the beat counter 2 and the first bit output Qo of the measure counter 3 are added to the rhythm pattern memory 1 as a dynamic addressing signal. As a result, the rhythm pattern memory 1 receives the output from the rhythm selection switch circuit 5. The rhythm pattern pulses are sequentially read out from the address specified by the rhythm selection information Rn.Here, the rhythm pattern memory l is also addressed by the fill-in pattern designation information Fn from the fill-in pattern designation switch circuit 6, but the rhythm pattern Since the memory 1 is constructed so that the fill-in pattern and the roll pattern are not read out unless the fill-in signal FiS generated from the fill-in control circuit 8 becomes .degree.l'', the fill-in pattern or the roll pattern is not read out.

Note that when the fill-in signal FiS becomes "1", the rhythm pattern memory 1 reads the fill-in pattern or the roll pattern preferentially.

The rhythm pattern pulses read from the rhythm pattern memory l are divided into pattern pulses (chord pattern pulses, bass pattern pulses, arpeggio pattern pulses) related to accompaniment notes (chord notes, bass notes, arpeggio notes) and rhythm pattern pulses related to rhythm notes. is,
Pattern pulses relating to accompaniment tones are applied to a musical tone forming circuit 13 via a gear 11, and rhythm pattern pulses relating to rhythm tones are applied to a percussion sound source circuit 12.

The musical tone forming circuit 13 uses chord pattern pulses, bass pattern pulses, and arpeggio pattern pulses generated from the rhythm pattern memory l based on keys pressed on the keyboard section 14 to indicate automatic chord tones, automatic bass tones, and automatic arpeggio tones. Forms a musical tone signal. Although the details of the musical tone forming circuit 13 are not shown, automatic chord tone formation based on a chord pattern, automatic bass tone formation based on a bass pattern, and automatic arpeggio tone formation based on an arpeggio pattern are described in, for example, Japanese Patent Application No. 1413188-1983. Specification of the invention, title of the invention ``Automatic chord playing device for electronic musical instruments'', specification of Japanese Patent Application No. 109750/1982, title of the invention ``Key code data generation device'', specification of the patent application No. 124947 of 1981, Devices similar to those listed under the name "electronic musical instruments" can be used.

The percussion instrument sound source circuit 12 includes a plurality of sound source circuits with tones corresponding to various percussion instruments, and controls the opening and closing of the output of each sound source circuit according to the rhythm pattern pulse read out from the rhythm pattern memory l to generate rhythm sounds. The musical tone signal shown in FIG.

A musical tone signal generated from the musical tone forming circuit 13 and a musical tone signal generated from the percussion sound source circuit 12 are resistively mixed and applied to an amplifier 15, where they are produced as a musical tone from a speaker 16.

In this way, automatic rhythm performance (hereinafter referred to as normal performance mode) based on the rhythm selection information Rn from the rhythm selection switch circuit 5 is performed.

In this normal performance mode, bar progression (number of bars) and beat progression (number of beats) are displayed by the bar/beat display circuit 18. That is, the measure/beat display circuit 18 includes a measure counter 3.
Output Qo = signal obtained by adding rlJ to Qa in adder 17 and output of upper bits of beat counter 2 TC3,T
C4 is added, and the number of bars and beats are displayed numerically based on these signals. The reason why the adder 17 adds "l" to the outputs Qo to Q4 of the measure counter 3 is because, as mentioned above, the measure counter 3 starts counting from the state where all bits "l°" are loaded. This is because the count value of the measure counter 3 indicates a value l smaller than the actual number of measures.

The display of the bar number and beat number by the bar/beat display circuit 18 is performed at the insertion timing (the press timing of the fill-in select switch 81 shown in FIG. 2 or the fill-in foot switch select To facilitate the timing of turning on the foot switch 83 when the switch 82 is on.

In FIG. 2, when the fill-in select switch 81 is turned on or when the switch 83 is turned on with the fill-in foot switch select switch 82 turned on, a signal "1" is generated from the OR circuit 0R81.

is output. This signal "L" is applied to the delay flip-flop DF81 via the OR circuit 0R82, and is applied to the delay flip-flop DF81 via the AND circuit A83.
Self-maintained at 81. At this time, the AND circuit A82
is inoperable by the inverted rhythm running signal RUN, so the fill-in signal FiS is not generated from the OR circuit 0R83.

The other input of the AND circuit A83 is an OR circuit 0R84 which takes the OR condition of the bar pulse Ci4' and the beat pulse Ci2'.
A signal that is the inverted output of is added. Here, the measure pulse Ci4' is a signal obtained by combining the measure pulse Ci4 output from the beat counter 2 and the output of the differentiating circuit 9 which takes the rising differential of the rhythm running signal RUN using the OR circuit 0R2 (Fig. 1). The pulse Ci2' is a signal obtained by combining the beat pulse Ci2 output from the beat counter 2 and the output of the differentiating circuit 9 by an OR circuit OR3.

Therefore, the delay flip-flop DF81 continues to hold the signal "1" until the next bar pulse Ci4' or beat pulse Ci2' occurs.

When a bar pulse Ci4' or a beat pulse Ci2' occurs and the output of the OR circuit 0R84 becomes ``1'', this signal ``l''
"The AND circuit A84 becomes operational, and the signal held in the delay flip flow 2 block DF81 is activated."
1" is applied to the delay flip-flop DF82 via the AND circuit A84 and the OR circuit B5, and held via the AND circuit A85. Also, at this time, the AND circuit A83 becomes inactive and the delay flip-flop DF
The holding of the signal "1'" of 81 is released.

A signal obtained by inverting the bar pulse Ci4' and a rhythm running signal RUN are applied to other inputs of the AND circuit A85. Therefore, the holding of the signal "1" by the delay flip-flop DF82 continues until the next bar pulse Ci4' occurs, and when the bar pulse Ci4' occurs, the AND circuit A85 becomes inactive and the holding of the signal "1" is released. be done.

The output of delay flip-flop DF82 is OR circuit 0
It is output as a fill-in signal FiS via R83.

FIG. 3 is a timing chart showing the above operation. However, in FIG. 3, the delay times of the delay flip-flops DF81 and DF82 are ignored since they are extremely short compared to other operation timings.

Now, at time P1, the fill-in select switch 81
or when the foot switch 83 is turned on with the fill-in foot switch select switch 82 turned on, the signal "1" is held in the delay flip-flop DF81, and the signal "1" is held in the delay flip-flop DF81.
The output of 1 rises. In this state, the next beat pulse Ci2'
When the signal "l" held in the delay flip-flop DF81 is transferred to the delay flip-flop DF8
2, and at the same time the delay flip-flop DF81
The signal hold is released. Daylay flip-flop D
F82 holds this signal °"1" until the next bar pulse Ci4' comes and outputs it as the fill-in signal FiS. Therefore, in this case, the fill-in signal FiS rises at the second beat pulse Ci2', and the bar pulse Ci4' is reached. Pulse Ci4
The signal becomes "L" for two beats falling at .

Further, if the fill-in select switch 81 is turned on at time P2, or the foot switch 83 is turned on with the fill-in foot switch select switch 82 turned on, FiS' shown in FIG. 3 is obtained in the same manner. This signal FiS' rises at the bar pulse Ci4' and falls at the next bar pulse Ci4'.
” is the signal.

Fill-in signal Fi output from fill-in control circuit 8
S is added to the rhythm pattern memory 1 to enable pattern readout from the address specified by the fill-in pattern designation information Fn from the fill-in pattern designation switch circuit 6, and to enable pattern reading from the address designated by the rhythm selection information Rn from the rhythm selection switch circuit 5. The rhythm pattern pulse read from the address is switched to the rhythm pattern (fill-in pattern or roll pattern) corresponding to the fill-in pattern designation information Fn.

Further, the fill-in signal FiS is applied to the enable terminal E of the gate 10 to turn on the gate IO.

Game) 10 has a fill-in pattern designation switch circuit 6
The fill-in designation information Fn is added to the light-emitting diode group 7, which is added to the light-emitting diode group 7. The light-emitting diode group 7 includes light-emitting diodes corresponding to each switch of the fill-in pattern designation switch circuit 6. is turned on based on the fill-in designation information Fn to display the fill-in pattern or roll pattern to be inserted.

Furthermore, the fill-in signal FiS is inverted by an inverter and applied to the enable terminal E of gate 11.
Turn off 1. This is to prevent the accompaniment tones (chord tones, bass tones, arpeggio tones) from being influenced by the fill-in pattern or roll pattern read out from the rhythm pattern memory 1. In addition,
In this case, a switch that can selectively change the operation of gate II may be provided separately, and the configuration may be configured such that when this switch is turned on, the accompaniment sound is also influenced by the fill-in pattern or the roll pattern. .

As a result, from the speaker 18, a rhythm sound mainly consisting of a drum solo based on the fill-in designation information Fn from the fill-in pattern designation switch circuit 6 or a rhythm sound consisting of repeated hits of the snare drum is transmitted to the rhythm selection information Rn from the rhythm selection switch circuit 5. pronounced in place of the rhythmic tones based on

Fill-in signal F generated from fill-in control circuit 8
When iS becomes "0", the rhythm pattern memory 1 is switched to read out the rhythm pattern again based on the rhythm selection information Rn from the rhythm selection switch circuit 5, and the gate 10 is turned off and the gate 11 is turned on.

Therefore, the rhythm sound produced by the speaker 16 returns to the rhythm sound based on the rhythm selection information Rn (normal performance mode), and the light emitting diodes in the light emitting diode group 7 that were lit are turned off.

As described above, in the running fill-in mode, no matter what timing the foot switch 83 is turned on while the fill-in select switch 81 or the fill-in foot switch select switch 82 is on, the insertion rhythm will definitely start at the start of a beat or measure. Since the ending is reliably synchronized with the ending point of the measure, there will be no disharmony or discontinuity between the running rhythm and the inserted rhythm.

Next, the intro fill-in mode will be explained.

Intro fill-in mode In the intro fill-in mode, first (before rhythm running) turn on the fill-in select switch 81 or fill-in foot switch select switch 82.
Turn on the foot switch 83 while turning on the foot switch 83.

As a result, the output of the OR circuit OR81 (Figure 2) is "1"
This is added to the AND circuit A81. The AND circuit A81 has the rhythm stop signal 5TOP added to the other input, and in this case, the rhythm stop signal 5TOP is "l", so the AND condition is satisfied and the signal "l" is output.This signal "1" is It is applied to the set input terminal S of a set-reset type flip-flop 84, and sets the flip-flop 84.The set output (Q) of the flip-flop 84 is output as a signal C0TD, which is inverted and shown in an AND circuit AI (FIG. 1). , and makes the AND circuit Al inoperable.

In other words, the measure counter 3 is rendered inactive.

In addition, the output "l" of the OR circuit 0R81 (Fig. 2) is passed through the OR circuit 0R82 to the delay flip-flop DF81.
The output of the delay flip-flop DF81 is output as a fill-in signal FiS via an AND circuit A82 and an OR circuit 0R83. This AND circuit A8
Since the rhythm is not running yet, the fill-in signal FiS outputted via the light emitting diode group 7 (Fig. 1)
It is used only to turn on the light emitting diode corresponding to the fill-in pattern or roll pattern to be inserted as an intro.

Subsequently, the start switch ST is turned on. When the start switch ST is turned on, the beat counter 2 starts operating, but since the AND circuit AI is inactive due to the signal C0TD generated from the fill-in control circuit 8, the bar counter 3 does not start operating. That is, the bar counter 3 does not count the bar pulse Ci4 output from the beat counter 2, and all bits "1" remain loaded. Therefore, the number of measures displayed on the measure/beat display circuit 18 is r(N.The flip-flop 84 transfers the rhythm running signal RUN to the delay flip-flop DF.
The AND circuit AI is reset by the delayed signal at 83, and thereafter becomes operable.

Further, the differential pulse generated from the differentiating circuit 9 which takes the rising differential of the rhythm running signal RUN is passed through the OR circuit 0'R3 or OR2 to the beat pulse Ci2' or the bar pulse Ci2'.
4' is added to the fill-in control circuit 8 (FIG. 2) to enable the AND circuit A84 and to operate the AND circuit A83.
By making it inactive, the signal "l" held in the delay flip-flop DF81 is transferred to the delay flip-flop DF82, and the delay flip-flop DF82 holds this signal "l" until the next bar pulse Ci4' occurs. , and outputs its output as a fill-in signal FiS via an OR circuit 0R83.

FIG. 4 is a timing chart showing the above operation. That is, at time point P3, when the fill-in select switch 81 is turned on, or when the foot switch 83 is turned on with the fill-in foot switch select switch 82 turned on, the flip-flop 84 is set and the signal C0TD rises to "1". At this time, the delay flip-flop DF81 also takes in the signal "1", thereby generating the fill-in signal FiS. Subsequently, when the start switch ST is turned on at time S, a rhythm running signal RUN is generated, and a beat pulse Ci2' and a bar pulse Ci4' are generated in synchronization with the rise of the rhythm running signal RUN. As a result, the contents of the delay flip-flop DF81 are transferred to the delay flip-flop DF82, and the fill-in signal Fi
S is retained. Further, the signal C0TD falls to "0" with a slight delay from the generation of the rhythm running signal RUN. The fill-in signal FiS is held until the next bar pulse Ci4' occurs, and becomes "0" when the next bar pulse Ci4' occurs.
Falling down.

The fill-in signal FiS generated from the fill-in control circuit 8 in this way is applied to the rhythm pattern memory 1 and the gate 1O111, and from the rhythm pattern memory 1 the fill-in pattern pulse or The roll pattern pulse is read out, the gate IO is turned on to light up the corresponding light emitting diode in the light emitting diode group 7, and the gate 11 is turned off so that the fill-in pattern pulse or the roll pattern pulse is input to the musical tone forming circuit 13. prohibit. The operation at this time is the same as that in the running fill-in mode.

When the next bar pulse Ci4' occurs and the fill-in signal FiS becomes "O", the rhythm pattern memory l is switched to read out the rhythm pattern pulse based on the rhythm selection information Rn from the rhythm selection switch 2ch circuit 5, and the signal C0TD is becomes “0”, the AND circuit AI
is enabled to operate, so the measure counter 2 starts operating from the first measure by this measure pulse Ci4'.
The normal performance mode follows.

That is, the rhythm sound based on the fill-in pattern or the roll pattern is automatically played for one measure immediately before the start of the normal performance mode.

As explained above, according to the present invention, it is possible to insert a rhythm sound mainly consisting of a drum solo or a rhythm sound consisting of repeated hits of a snare drum at a desired location using a manual switch or a foot switch, so that it is possible to change the rhythm. Can be done. Furthermore, since this insertion is controlled in synchronization with the beat or bar, the inserted rhythm will not be discordant or discontinuous with other rhythms.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of the automatic rhythm playing device of the present invention, Fig. 2 is a circuit diagram showing details of a fill-in control circuit in the same embodiment, and Figs. 3 and 4 are diagrams showing details of the fill-in control circuit. It is a timing chart for explaining the operation. 1... Rhythm pattern memory, 2... Beat counter, 3... Bar counter, 4... Tempo oscillator, 5...
... Rhythm selection switch circuit, 6... Fill-in pattern designation switch circuit, 7... Light emitting diode group, 8
. . . Fill-in control circuit, 9 . . . Differential circuit, 10.
11... Gate, 12... Percussion instrument sound source circuit, 13
... musical tone forming circuit, 14... keyboard section, 15...
Amplifier, 16... Speaker, 17... Adder, 18
...Measure/beat display circuit.

Claims (1)

[Claims] (a) First and second rhythms that are different from each other with respect to the desired rhythm.
(b) an operator for controlling the designation of the rhythm pattern; (c) a detection means for detecting the operation of the operator and transmitting operation information; (d) (e) clock generating means for generating a tempo clock signal according to a given tempo; (f) for each beat of the rhythm based on the tempo clock signal; (g) a pattern specifying means for specifying a rhythm pattern to be read from the pattern memory, the timing specifying means for specifying a rhythm pattern to be read from the pattern memory; Each time a beat start timing is instructed by the instruction means, it is checked whether the operation information from the detection means is stored in the storage means, and if the operation information is stored, the first step is performed in synchronization with the beat start timing. The second rhythm pattern is designated in place of the second rhythm pattern, and if the operation information from the detection means is stored in the storage means after this designation, the beginning of the measure designated by the timing instruction means after the designation. After the timing, the designation of the second rhythm pattern is continued, and after the bar start timing, the first rhythm is changed in place of the second rhythm pattern in synchronization with the bar start timing instructed by the timing instruction means. (h) each time the timing instructing means instructs a beat start timing, after the pattern specifying means finishes checking the memory contents of the storage means at the start timing; erasing means for erasing stored operation information from the storage means; (i) automatic reading according to the rhythm pattern specified by the pattern specifying means from the pattern memory based on the tempo clock signal; An automatic rhythm performance device comprising a rhythm sound generating means for automatically generating a rhythm sound signal.