Music – Instruments
Patent
1980-06-20
1982-05-04
Witkowski, S. J.
Music
Instruments
84DIG12, 84DIG22, G10H 138, G10H 142
Patent
active
043276229
ABSTRACT:
An electronic musical instrument is of a type in which bass/chord performance can be automatically performed without depression of the keys on the keyboard. This electronic musical instrument has a chord constituent note data producing circuit which stores several kinds of chord progression patterns each of which consists of a series of plural chord data aligned in sequence. The chord progression pattern to be played is selected by the chord progression designation switch. The chord note data producing circuit has a memory for storing a root note of each chord as the chord data, and circuit for producing subordinate note data based on the chord data and tonality for the chord. Data for bass tone is obtained by a root note detection circuit for producing a root note data, a pattern producing circuit for producing bass pattern data, and an adder for adding the root note data and the bass pattern data.
REFERENCES:
patent: Re29144 (1977-03-01), Bunger
patent: 3844192 (1974-10-01), Brand et al.
patent: 3872765 (1975-03-01), Amaya
patent: 3889568 (1975-06-01), Amaya
patent: 4065993 (1978-01-01), Hirose
patent: 4282786 (1981-08-01), Deutsch et al.
Nippon Gakki Seizo Kabushiki Kaisha
Witkowski S. J.
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