Keyboard simulation with vertical inversion indexes

Details Keyboard simulation with vertical inversion indexes Keyboard simulation with vertical inversion indexes

1980-04-18

1981-10-20

Franklin, Lawrence R.

Music

Accessories

Teaching devices

84481, 235 89R, G10G 102

Patent

active

042954070

ABSTRACT:
A teaching aid simplifies the understanding and practicing of the inversions of the major triads of the diatonic scale by utilizing a series of insert cards which slide into a simulated keyboard and read up vertically duplicate sets of the scale tones of the triad beginning with the underlying keyboard tone. In contrast with the usual method of inversion indication, wherein sequential indicia point out inversions on the keyboard itself, or on a horizontal scale, by reading up vertically rather than horizontally the student is able to easily see the inversion arrangement without confusing it with the keys that he is playing.

REFERENCES:
patent: 3350973 (1967-11-01), Weis et al.
patent: 3431885 (1969-03-01), Miklas
patent: 3903783 (1975-09-01), Leonard

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