Music – Instruments
Patent
1979-05-18
1981-10-06
Witkowski, S. J.
Music
Instruments
84DIG12, 84DIG22, 84DIG25, G10H 138, G10H 142
Patent
active
042928745
ABSTRACT:
Electronic and logic circuitry for an automatic tonal bass rhythm accompaniment feature and an automatic chord feature in an electronic organ. Automatic bass rhythm accompaniment produces a pattern of notes based upon a tonic note selected by the instrumentalist such that the desired musical effect is produced when the pattern of notes is combined with the notes being played by the instrumentalist. The electronic organ has stored in a memory various rhythm patterns which can be selected by the instrumentalist by closing rhythm switches. Electronic circuitry then causes notes for the selected rhythm pattern or patterns to be played automatically in response to the actuation of a pedal switch or keyswitch. The automatic chord feature of the present invention provides selectively major triad and dominant seventh chords or minor triad and diminished seventh chords automatically in response to the selection of a root note by the instrumentalist.
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Jones Edward M.
Simmons, Jr. Carlton J.
Baldwin Piano & Organ Company
Witkowski S. J.
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