Music – Instruments
Patent
1983-07-22
1985-02-19
Isen, Forester W.
Music
Instruments
84DIG22, 84DIG2, G10F 100
Patent
active
044998074
ABSTRACT:
A key data entry system for an electronic musical instrument comprises a keyboard having a plurality of user operable chord specification keys, a detector for detecting the key operation state of the chord specification keys, a first specifying device for specifying a particular one of the operated chord specification keys and a second specifying device for specifying the number of chord specification keys operated at one time. Further provided is a chord designating device which designates the root note and the kind of a chord to be produced as a function of the particular one of the operated chord specification keys and the number of chord specification keys operated at one time. In one implementation, one type of chord is produced when only one chord specification key is operated, a second type of chord is produced when two of the chord specification keys are operated together and a third type of chord is produced when three or more of the chord specification keys are operated together.
REFERENCES:
patent: 4028560 (1977-06-01), Bainter
patent: 4117758 (1978-10-01), Osburn et al.
patent: 4185210 (1980-01-01), Zuk
patent: 4232581 (1980-11-01), Uchiyama
patent: 4282786 (1981-08-01), Deutsch et al.
Casio Computer Co. Ltd.
Isen Forester W.
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