Chord progression selector

Details Chord progression selector Chord progression selector

1975-07-10

1977-01-11

Tomsky, Stephen J.

Music

Accessories

Teaching devices

84474, 235 88R, G09B 1502

Patent

active

040020975

ABSTRACT:
A chord inversion coordination aid comprises a plurality of dials of increasing diameter and each representing a particular chord type and having a peripheral array of the scale tone names of the chord in its root and inverted positions arranged in sectors, whereby upon aligning various sectors of the discs a given chord progression can be arranged according to the most easily played chord inversions. The dial may be centrally pivoted behind a cover sheet having a window therein to expose the dial sectors, and a pad of staff paper may be mounted on the cover sheet.

REFERENCES:
patent: 2960267 (1960-11-01), McFarlane
patent: 3129628 (1964-04-01), Hall
patent: 3472117 (1969-10-01), Iverson, Jr. et al.
patent: 3592099 (1971-07-01), Gibby
patent: 3884110 (1975-05-01), Leonard
patent: 3884112 (1975-05-01), Leonard
patent: 3884113 (1975-05-01), Leonard
patent: 3884114 (1975-05-01), Leonard

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