Transposition apparatus for an electronic musical instrument

Details Transposition apparatus for an electronic musical instrument Transposition apparatus for an electronic musical instrument

1975-02-24

1977-03-15

Weldon, Ulysses

Music

Instruments

84 103, 84 124, 84 117, G10H 100

Patent

active

040117847

ABSTRACT:
A transposition apparatus for an electronic musical instrument such as an electronic organ is disclosed. The transposition apparatus permits the playing of a musical score in any desired key regardless of the key actually being played. The apparatus converts the actual keying pattern to a serial bit pattern which is then delayed by a desired number of bit positions. The delayed serial bit pattern is then converted back to a keying pattern to actuate the tone generator of the instrument.

REFERENCES:
patent: 3601518 (1971-08-01), Hill
patent: 3610800 (1971-10-01), Deutsch
patent: 3674907 (1972-07-01), Derry
patent: 3697661 (1972-10-01), Deutsch
patent: 3746773 (1973-07-01), Uetrecht
patent: 3868882 (1975-03-01), Fukui et al.

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