| 摘要 |
PROBLEM TO BE SOLVED: To provide simple music instruction tool which enables users to learn the relations of keyboards, tones, pitch names and staves, by themselves without spending mach time, while enjoying as though playing a game. SOLUTION: This music instruction tool is respectively displayed with a keyboard 23 consisting of white keys 23a and black keys 23b, a staff 26 orthogonal with the rows of the keys and clefs 27 on the staff on the surface of a planar body and is provided with holes 25, 26a and 27a containing balls, in correspondence to natural tones at the white keys 23a and the clefs 27. The tool may also be provided with holes for containing the balls in correspondence to natural tones on the staff notation. The equally satisfactory alternative is to display the pitch names on the white keys or to display the staff notation in a bass region and a treble region and to display an F clef in the bass region and a G clef in the treble region.
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