Piano panel (37-key stave)

Abstract

1. Name of the designed product: piano panel (37-key staff). 2. Use of the designed product: overall use: for piano practice and performance; partial use: for the display of changes in the brightness of the notes on the panel during piano playing. 3. Design points of the designed product: in the partial shape. 4. Picture or photo best indicating the design points: perspective view 1. 5. Other circumstances or explanations: this design is a partial design, the red part is not protected, and the rest is the partial part that needs protection.

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