Music – Instruments – General features
Patent
1988-08-25
1990-05-22
Franklin, Lawrence R.
Music
Instruments
General features
84424, 84428, G10C 312
Patent
active
049267345
ABSTRACT:
A graphic/tactile musical instruction system includes a three-row equal temperament whole tone graphic/tactile keyboard and a nomographic system of music notation. In a first embodiment of the keyboard, an upper row of keys produces the notes C.sup.# /D.sub.b, D.sup.# /E.sub.b, F, G, A and B, with the C.sup.# /D.sub.b and D.sup.# /E.sub.b keys being extended forward. The upper row keys are narrower in the highest octaves. The middle row produces the notes C, D, E, F.sup.# /G.sub.b, G.sup.# /A.sub.b and A.sup.# /B.sub.b, with the F.sup.# /G.sub.b, G.sup.# /A.sub.b, and A.sup.# /B.sub.b keys extended forward. The lower row keys are aligned with and play the same notes as the upper row keys. In a second embodiment of the keyboard, the upper row keys are narrower in the upper octaves. The F and G upper row keys have raised top surfaces, extended and beveled front ends, and darkened surfaces. The middle row C keys have extended and beveled front ends, raised top surfaces, and darkened surfaces. The lower row F and G keys are raised and darkened.
The nomographic notation is correlated to the keyboard by nomographically marking the lines and spaces of the stave adjacent the key signature and similarly graphically marking the notes played on the upper or lower row with a diagonal slant " ".
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