Claims
- 1. A color sticker or marking device for each black half tone key of a conventional keyboard instrument, said color sticker being of a different color for each octave, said black half tone keys corresponding to a notation system consisting of a plurality of parallel lines spaced essentially in proportion to, and representing, said black half tone keys, said parallel lines being colored to match the color of said colored stickers of the corresponding black half tone keys, the spaces between said parallel lines representing the white full tone keys.
Parent Case Info
This patent application is a follow-up of patent application by same inventor Ser. No. 07/847,829 filed Mar. 06, 1992 and abandoned.
US Referenced Citations (2)