Transposition rule for musical theory

Details Transposition rule for musical theory Transposition rule for musical theory

1995-10-05

1996-07-16

Spyrou, Cassandra C.

Music

Accessories

Teaching devices

84471SR, 84480, 235 70A, G09B 1502, G06G 102

Patent

active

055356591

ABSTRACT:
A transposition rule for musical theory for the visual indication of the sequence of notes of musical scales and/or chords in the various keys of a tone system. The transposition rule includes an elongated base member which is provided with fixed scales, wherein the scales include the notes of the tone system arranged with a uniform division, and replaceable sliding scales which are displaceably guided in the base member and are provided with the sequences of notes of the musical scale and of the chords in a division corresponding to the division of the fixed scales. The slide member is arranged in the base member in an on-edge position.

REFERENCES:
patent: 1783361 (1930-12-01), Gibson
patent: 3592099 (1971-07-01), Gibby
patent: 4289057 (1981-09-01), Whitlock
patent: 4881443 (1989-11-01), Bertram

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