Electronic musical instrument with frequency modulation

An electronic musical instrument, comprising:

• means for entering performance information data;
• a plurality of operators respectively performing a waveform generation and frequency modulation thereof on the basis of at least one of frequency-number data and modulation data applied to at least one input of said operators;
• setting means for variably setting a combination of input and output connections between said respective operators;
• connection switching means for switching connections between said respective operators in response to the combination of connections set by said setting means;
• feedback means, provided for at least one of said operators, for feeding back output to an input of the same operator with variable feedback parameter .beta.;
• and
• control data generating means for generating control data to control said feedback parameter .beta. in accordance with the performance information data.

An electronic musical instrument, comprising:

• random number generating means for generating a random number;
• pitch envelope generating means for generating pitch-modulation data in accordance with a random number supplied thereto;
• a plurality of operators respectively performing a waveform generation in response to said pitch-modulation data, each of said operators being capable of generating a musical tone signal;
• setting means for variably setting a combination of input and output connections between said respective operators;
• and
• connection switching means for switching connections between said respective operators in response to a combination of connections set by said setting means.

An electronic musical instrument, comprising:

• means for generating a keycode corresponding to a musical note;
• computing means for computing pitch deviation of each note from equal temperament on the basis of temperament parameters, said temperament parameters comprising center key data that defines a center key at which the pitch deviation from equal temperament is zero and a stretch factor that defines a predetermined function which changes pitch deviation in accordance with key number data representing pitch;
• supplying means for supplying the temperament parameters to said computing means;
• frequency-number data generating means for generating frequency-number data by converting a keycode thereto in accordance with a computed pitch deviation;
• and
• musical tone generating means for generating musical tones in response to the frequency-number data.

An electronic musical instrument, comprising:

• means for generating a keycode corresponding to a musical note;
• computing means for computing pitch deviation of each note from equal temperament on the basis of temperament parameters, said temperament parameters comprising center key data that defines a center key at which the pitch deviation from equal temperament is zero and a stretch factor that defines a gradient of the pitch deviation;
• supplying means for supplying the temperament parameters to said computing means;
• frequency-number data generating means for generating frequency-number data by converting a keycode thereto in accordance with a computed pitch deviation;
• and
• musical tone generating means for generating musical tones in response to the frequency-number data, said musical tone generating means comprising:
• a plurality of operators respectively performing a waveform generation and modulation thereof on the basis of at least one of frequency-number data and modulation data applied to at least one input of said operators;
• setting means for variably setting a combination of input and output connections between said respective operators;
• and
• connection switching means for switching connections between said respective operators in response to a combination of connections set by said setting means.

An electronic musical instrument, comprising:

• means for generating a keycode;
• memory means for storing pitch deviation data corresponding to each one of plural tone names in an octave;
• frequency-number data generating means for generating frequency-number data by converting a keycode to the frequency-number data;
• computing means for computing tone pitch data to be generated in accordance with said pitch deviation data and said frequency-number data corresponding to said keycode;
• and
• musical tone generating means for generating musical tones in accordance with said tone pitch data.