Device for computing musical relationships

Details Device for computing musical relationships Device for computing musical relationships

1977-02-25

1979-01-16

Gonzales, John

Music

Accessories

Teaching devices

35 77, G09B 1502

Patent

active

041343263

ABSTRACT:
A device which is used for computing the transposition of musical chords and comprises a number of dials each of which is rotatable about a central axis. Each dial has a display of indicia thereon which indicate the steps of a chromatic musical scale. The dials can be moved relative to each other to a plurality of positions which indicate relationships which include chord indication and transposition.

REFERENCES:
patent: 305585 (1884-09-01), Forrest
patent: 1227489 (1917-05-01), Pantillon
patent: 1569328 (1926-01-01), Logan
patent: 3572205 (1971-03-01), Scholfield
patent: 3674905 (1972-07-01), Collins

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