Music – Instruments – Electrical musical tone generation
Patent
1988-06-24
1989-11-21
Witkowski, Stanley J.
Music
Instruments
Electrical musical tone generation
84 11, 84DIG22, 84649, G10H 138, G10H 146, G10H 700
Patent
active
048814407
ABSTRACT:
There is disclosed an electronic keyboard system capable of producing musical tones on the basis of a sequence of pieces of musical data information and comprising: a) memory for storing the pieces of musical data information grouped by time durations with respect to a beginning of a performance; b) modification range defining portion for specifying a head position and a terminational position in the pieces of musical data information; c) setting portion for establishing a variation; d) modifying portion for modifying each first musical data information between the head position and the terminational position on the basis of the variation.
REFERENCES:
patent: 4615024 (1986-09-01), Usui
patent: 4622877 (1986-11-01), Strong
patent: 4682526 (1987-07-01), Hall et al.
patent: 4704682 (1987-11-01), Clynes
patent: 4719834 (1987-01-01), Hall et al.
patent: 4763257 (1988-08-01), Clynes
Witkowski Stanley J.
Yamaha Corporation
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