Abstract: A plurality of instructions to be executed in an order of being issued without an appointment of a waiting time or a starting moment are designed to be executed after a certain waiting time; instructions to be executed in an order of being issued without designation of starting moment or waiting time are provided with starting moment or waiting time information so that the instructions can be executed in an order designated by the time information.

Abstract: Some timbres in the timbre combinations are selected and memorized according to the above timbre selection means corresponding to the timbre groups that the selected timbres belong to. The timbre combinations are classified and memorized according to the timbre groups. Thus it is made easy to search a timbre combination. When the store button 27 is turned on (step 61), it is identified which zone is appointed by the zone select buttons 24 being turned on placed on the switch table (step 63) and tone number data in the zone in the setup timbre register 42 are read out (step 64). At the top address of the vacant area in the setup area of the timbre group area on the timbre table 61 corresponding to the selected tone number data, tone number data, loudness data and setup range data of all the zones of the setup timbre register 42 (step 65).

Abstract: In the multi-timbre states in which musical tones with various timbres are outputted or imputed simultaneously and in the non-multi-timber states in which musical tones with a single timbre are outputted or inputted, the most suitable state of transmitting musical tone data is provided. When the non-multi-timber states is selected (step 12), the zones “1” and “2” turn into the in-communication states (INT) and the zones “3” and “4” turn into the out-communication states (EXT). When the multi-timbre states is selected (step 12), all the zones/timbres turn into the both-communication states (BOTH) (step 13). The both-communication states provide said in and out-communication states simultaneously. In the out-communication states, tone data are sent to the external apparatus connected to the musical tone (internal) apparatus. In the in-communication states musical tone data are sent only within the musical tone (internal) apparatus.

Abstract: The component tone signal commonly shared by a plurality of keys does not turn to a release signal if one of the keys is released to stop a tone and also while tones of other keys are sustained; the on-data of each key of the keyboard is multiplied in multiplier by the amplitude data set by the draw-bar circuit with the multipliers, added with adder and sent to the sound source circuit; the sine waves of the same waveform and different cycles are generated according to the amplitude data, are synthesized with envelopes from envelope generator, and the added with adder; this envelope generator is disposed at every sound source circuit, that is, every one of the common component tone signals; the component tone signal/sine wave commonly shared by a plurality of keys does not turn to direct to a release state if one of the keys is operated to stop a tone, and also directs not to turn to a release state but to maintain a sustain state while tones of the other keys are sustained.

Abstract: In the multi-timbre states in which musical tones with various timbres are outputted or imputed simultaneously and in the non-multi-timber states in which musical tones with a single timbre are outputted or inputted, the most suitable state of transmitting musical tone data is provided. When the non-multi-timber states is selected (step 12), the zones “1” and “2” turn into the in-communication states (INT) and the zones “3” and “4” turn into the out-communication states (EXT). When the multi-timbre states is selected (step 12), all the zones/timbres turn into the both-communication states (BOTH) (step 13). The both-communication states provide said in and out-communication states simultaneously. In the out-communication states, tone data are sent to the external apparatus connected to the musical tone (internal) apparatus. In the in-communication states musical tone data are sent only within the musical tone (internal) apparatus.

Abstract: Sounds in different frequency range are generated from the rear, top and/or front face of the musical tone apparatus, sounds are generated and spread in all directions around the musical tone apparatus, and the tones sound very realistically acoustic. Vibration of the sound board does not resonate, tones generated from the sound board are not changed unintentionally, and tones of real acoustic musical instruments are realized. Vibration from the sound board is not directly transferred to the whole musical tone apparatus, by means of not allowing the sound board to touch the body of the musical tone apparatus and of pressing and fixing the soundboard to the attachment component with the thickness of the attachment component compressed.

Abstract: A plurality of instructions to be executed in an order of being issued without an appointment of a waiting time or a starting moment are designed to be executed after a certain waiting time; instructions to be executed in an order of being issued without designation of starting moment or waiting time are provided with starting moment or waiting time information so that the instructions can be executed in an order designated by the time information.

Abstract: Some timbres in the timbre combinations are selected and memorized according to the above timbre selection means corresponding to the timbre groups that the selected timbres belong to. The timbre combinations are classified and memorized according to the timbre groups. Thus it is made easy to search a timbre combination. When the store button 27 is turned on (step 61), it is identified which zone is appointed by the zone select buttons 24 being turned on placed on the switch table (step 63) and tone number data in the zone in the setup timbre register 42 are read out (step 64). At the top address of the vacant area in the setup area of the timbre group area on the timbre table 61 corresponding to the selected tone number data, tone number data, loudness data and setup range data of all the zones of the setup timbre register 42 (step 65).

Abstract: The component tone signal commonly shared by a plurality of keys does not turn to a release signal if one of the keys is released to stop a tone and also while tones of other keys are sustained; the on-data of each key of the keyboard is multiplied in multiplier by the amplitude data set by the draw-bar circuit with the multipliers, added with adder and sent to the sound source circuit; the sine waves of the same waveform and different cycles are generated according to the amplitude data, are synthesized with envelopes from envelope generator, and the added with adder; this envelope generator is disposed at every sound source circuit, that is, every one of the common component tone signals; the component tone signal/sine wave commonly shared by a plurality of keys does not turn to direct to a release state if one of the keys is operated to stop a tone, and also directs not to turn to a release state but to maintain a sustain state while tones of the other keys are sustained.

Abstract: A soundboard, which vibrates and generates tones, does not hit the mounting member (components); as a result abnormal vibration/noise is not caused; a contact members are contacted and attached on the both sides of the soundboard which generates tones; the contact member is softer than the soundboard; mounting member is harder than the contact members, mounting members are contacted outside the both contact members; all of them from the mounting members through the mounting members are held and fixed with the connect members; the soundboard is detached from the hard mounting members with the soft contact member (sheet) in between; therefore the tone characteristics of the soundboard do not deteriorate, and abnormal vibration/noise caused by resonance of soundboard and other components do not occur.

Abstract: Sounds in different frequency range are generated from the rear, top and/or front face of the musical tone apparatus, sounds are generated and spread in all directions around the musical tone apparatus, and the tones sound very realistically acoustic. Vibration of the sound board does not resonate, tones generated from the sound board are not changed unintentionally, and tones of real acoustic musical instruments are realized. Vibration from the sound board is not directly transferred to the whole musical tone apparatus, by means of not allowing the sound board to touch the body of the musical tone apparatus and of pressing and fixing the soundboard to the attachment component with the thickness of the attachment component compressed.

Abstract: A soundboard, which vibrates and generates tones, does not hit the mounting member (components); as a result abnormal vibration/noise is not caused; a contact members are contacted and attached on the both sides of the soundboard which generates tones; the contact member is softer than the soundboard; mounting member is harder than the contact members, mounting members are contacted outside the both contact members; all of them from the mounting members through the mounting members are held and fixed with the connect members; the soundboard is detached from the hard mounting members with the soft contact member (sheet) in between; therefore the tone characteristics of the soundboard do not deteriorate, and abnormal vibration/noise caused by resonance of soundboard and other components do not occur.

Abstract: Resonance is realized at a desired plurality of tone pitches even after the musical tone signals of a plurality of channels have been synthesized; synthesized musical tone signals are successively delayed, the musical tone signals that are successively delayed are weighted, synthesized and output; the delayed, weighted, synthesized and outputted musical tone signals are fed back, and a series of successive delays, weights, synthesizes and outputs by the feed back are repeated and thus resonance characteristics is imparted; the amount of weighting the musical tone signals successively delayed is determined based upon a relationship among the delay feedback period, the period of sampling the generated musical tone signals and the tone pitch period of the resonance sound imparted with resonance characteristics, and a frequency of the resonance characteristics are determined; Therefore, the resonance characteristics are added at a desired tone pitch after the plurality of musical tone signals are synthesized into

Abstract: The data put to the digital filter operation and the data not put to the digital filter operation are synthesized together at a predetermined distribution ratio to form a stereophonic sound image. A digital filter operation is executed for forming a sound image in the vertical direction that reaches one ear being diffracted by the head, and a digital filter operation is executed for forming a sound image in the vertical direction in the other ear, thereby to form a stereophonic sound image in the vertical direction. Of the sound generated from one of the different sound systems, the sound reaching one ear is canceled and the only sound reaching the other ear is validated by generating a counterbalance sound component. Excess sound component is erased, the excess sound component being generated from the other sound system and being not desired for forming the stereophonic sound image.

Abstract: A tone to which resonance characteristics have been added to is repetitively delayed so as to reverberate. The delay of the tone is determined based on the resonance characteristics, and a modified tone in which the reverberation and resonance characteristics are related to one another is generated.

Abstract: An interruption control apparatus for controlling interruptions of a performance information processor for processing performance information of a piece of music. The interruption control apparatus includes a first time control unit for regulating the length of a time interval between successive interruptions of the performance information processor according to a pre-set tempo in such a manner that the regulated time interval is limited within a predetermined constant range, and for outputting an interruption signal at the regulated time interval.

Abstract: An interruption control apparatus for controlling interruptions of a performance information processor for processing performance information of a piece of music.

Abstract: A successive comparison type analog-to-digital (AD) converter having a successive comparing circuit which is implemented by two successive comparators, and having a parallel two sequence AD conversion capability while adapting itself to another conversion system at the same time as needed. The successive comparators are not expensive and are, therefore, sucessful in constituting an inexpensive successive comparison type AD converter.

Abstract: An electronic musical instrument capable of effecting vibratos with any of tones which may be produced by pressing down the keys of a keyboard. A key constant memory stores key constants each being assigned to a different tone, while a vibrato constant memory stores vibrato constants each being assigned to a different tone. The keyboard is provided with an exclusive switch for effecting vibratos. When this exclusive switch is pressed, a counter which counts clock pulses feeds its output to an adder/subtractor in the form of an addition/subtraction switchover signal and an addition/subtraction execution control signal. In response, the adder/subtractor periodically and alternately performs addition and subtraction with the key constant and vibrato constant associated with a key being pressed down.