Universal keyboard for hand

Details Universal keyboard for hand Universal keyboard for hand

1992-02-14

1993-08-10

Gellner, Michael L.

Music

Instruments

General features

84427, G10C 312

Patent

active

052338991

ABSTRACT:
A universal keyboard for hand in which the keys are composed of main keys for natural tones and subkeys for derivative tones, the keys being arranged in the order of musical scale of half tones and in equidistance, the upper operation surfaces of the subkeys being lower than the upper operation surfaces of the adjacent main keys, and further there being provided intervals between the side and upper portions of the adjacent keys respectively. By this arrangement, it becomes easy to play the natural tones and to enable a transposition.

REFERENCES:
patent: 197648 (1877-11-01), McChesney
patent: 3392620 (1968-07-01), Thompson
patent: 3433881 (1969-03-01), Cotten
patent: 3468209 (1969-09-01), Barreto
patent: 4444083 (1984-04-01), Apel et al.
patent: 4658696 (1987-04-01), Clancy
patent: 4782734 (1988-11-01), Rose

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