G - Physics – 09 – B
Patent
G - Physics
09
B
35/32
G09B 15/08 (2006.01)
Patent
CA 1042203
Abstract of the Disclosure A system for instruction in the manipulation of the chord portion of a keyboard of a musical instrument in 3-4 or 4-4 time includes uniquely written music which provides a student with an identity of the root note of each chord to be played and the timing (but not necessarily the identity) of the corresponding chord triad to follow the root note. In conjunction with the music, an apparatus senses the depression of the root note key by the student, provides a sustained confirming identification of that note, and provides the identity (but not the timing) of the triad notes. The indication is retained until a different note key is depressed. The apparatus is useful independently of the written music or keyboard instrument to demonstrate the 5-2-1 system of fingering chords as set forth in U.S. Patent No. 3,335,630, issued August 15, 1967 to Arthur R. Schmoyer. The applicability of the apparatus as a visual aid to instruction is particularly vivid as one successfully activates the apparatus through a scale of triads. This activation can be done on a keyboard, indepen- dently of the keyboard by simply manually manipulating actuators, or could be accomplished on a classroom scale by a display including other actuators such as conventional switches or push- buttons of conventional forms which may be remote from the display itself.
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