Music – Instruments – Electrical musical tone generation
Patent
1989-12-22
1993-01-12
Witkowski, Stanley J.
Music
Instruments
Electrical musical tone generation
84651, 84665, 84DIG12, 84DIG22, G10H 138, G10H 142, G10H 146
Patent
active
051792400
ABSTRACT:
An electronic musical instrument provides a keyboard providing plural keys, memories for storing necessary programs and data, a musical tone signal generating circuit providing plural channels and a control unit such as a micro computer. A melody tone is designated by depressing a melody key within the keyboard. Then, an additional tone is automatically generated in relation to the melody tone by executing the programs, wherein its pitch, volume and tone color are controlled by the control unit. The melody tone and additional tone are assigned to desirable channels, from which the melody tone and additional tone are generated at different phonic positions. By varying the number of forming pattern of additional tones, it is possible to carry out the performance full of variety. Preferably, the additional tone is selected identical to a chord constituent note within a chord designated by performing the keyboard.
REFERENCES:
patent: 4429606 (1984-02-01), Aoki
patent: 4433601 (1984-02-01), Hall et al.
patent: 4450742 (1984-05-01), Sugiura
patent: 4508002 (1985-04-01), Hall et al.
Iwase Fumio
Mizuno Kotaro
Witkowski Stanley J.
Yamaha Corporation
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