Music – Accessories – Teaching devices
Patent
1979-01-15
1980-06-10
Hix, L. T.
Music
Accessories
Teaching devices
G04F 500, G04F 502
Patent
active
042066824
ABSTRACT:
A teaching aid for musicians has a circular disc eccentrically mounted on a motor-driven shaft which is rotatable at a constant, selected speed. The peripheral edge of the disc is eccentrically disposed with respect to the longitudinal axis of the shaft and portions of that edge provide a visual indication of musical rhythm or tempo as the disc rotates. A sounding device is associated with the disc to beat out time and augment the visual indication of tempo with an audible, repetitive sound.
REFERENCES:
patent: 1261382 (1918-04-01), Grimson
patent: 1438144 (1922-12-01), Stevenson
patent: 1930997 (1933-10-01), Fascinato
patent: 2988822 (1961-06-01), Knudsen
Hix L. T,.
Wade Shelley
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