Automatic key-depression indication apparatus

Details Automatic key-depression indication apparatus Automatic key-depression indication apparatus

1990-01-17

1991-12-03

Shoop, Jr., William M.

Music

Accessories

Teaching devices

84477R, 84609, G10H 700

Patent

active

050691040

ABSTRACT:
An automatic key-depression indication apparatus has an examination device which examines whether at least one of the musical note information corresponds to the key-depression information output from the key-depression control device, or not. When the decision is affirmative, it decides that at least one of the keys is correctly depressed which corresponds to a plurality of musical notes, the number of which is less than total number of the musical notes. A key-depression indication is then advanced, thereby enabling practice of a performance.

REFERENCES:
patent: 4281579 (1981-08-01), Bennett, Sr.
patent: 4363299 (1982-12-01), Nakada et al.
patent: 4694723 (1987-09-01), Shinohara et al.

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