Music – Instruments
Patent
1983-12-27
1985-06-04
Isen, Forester W.
Music
Instruments
84DIG12, 84DIG23, G10F 100
Patent
active
045207070
ABSTRACT:
A system for automatically generating an accompaniment note pattern and a bass pattern programmed therein by the player. The system includes a programmable microprocessor wherein two patterns, one sounding in the frequency range of the solo and accompaniment manuals and the other in the frequency range of the pedals, can be programmed into a programmable and reprogrammable memory by the player by means of a separate keypad or one or two octaves of keys on the regular keyboards. The patterns are programmed in without regard to key, and on playback, the microprocessor is responsive to the chord being played at that time on the accompaniment manual to transpose the read out patterns to a compatible key. Means are provided for phase locking simultaneously occurring notes of the two patterns if they are of the same or octavely related frequencies. This is accomplished by causing both notes to be taken off the same divider string if a match of pitch occurs.
REFERENCES:
patent: 3878750 (1975-03-01), Kapps
patent: 4038896 (1977-08-01), Faulkner
patent: 4129055 (1978-12-01), Whittington et al.
patent: 4191083 (1980-03-01), Wilcox et al.
patent: 4220068 (1980-09-01), Howell et al.
patent: 4292874 (1981-10-01), Jones et al.
patent: 4339978 (1982-07-01), Imamura
Howell Stephen L.
Weil, Jr. Robert A.
Isen Forester W.
Kimball International Inc.
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