Electronic musical instrument employing tru-scale interval syste

Details Electronic musical instrument employing tru-scale interval syste Electronic musical instrument employing tru-scale interval syste

1988-07-25

1989-08-29

Grimley, A. T.

Music

Instruments

84454, 84 128, G10H 100, G10H 303, G10G 702

Patent

active

048606243

ABSTRACT:
An electronic musical instrument for reproducing chords in a fixed interval scale, know as Tru-Scale, without overtone collision. The instrument includes a memory for storing of frequency information corresponding to respective notes for producing tones using the Tru-Scale interval system. The inventive instrument reproduces single notes and chords in accordance with an interval system which eliminates dissonance, allows complete modulation, in all key signatures, and pure tone chords without altering the keyboard. The invention also contemplates the use of the Tru-Scale frequencies with all MIDI interface compatible instruments, in conjunction with a suitable tone generator, or through internal or external memory sources.

REFERENCES:
patent: 4152964 (1979-05-01), Waage
patent: 4178823 (1979-12-01), McCoskey et al.
patent: 4248119 (1981-02-01), Yamada
patent: 4327623 (1982-05-01), Mochida et al.
patent: 4434696 (1984-03-01), Conviser
patent: 4498363 (1985-02-01), Shimada et al.

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