| 摘要 |
PROBLEM TO BE SOLVED: To provide a simple playing instrument with which even a beginner can easily play music. SOLUTION: The simple playing instrument 1 for playing sound by pushing a keyboard 2 has a plurality of keyboards 2,..., 2 for playing sound of at least one octave, a one-octave increasing switch 3 to change the sound of the keyboards 2,..., 2 into a sound of one octave higher, and a one-octave reducing switch 4 to change the sound of the keyboard 2,..., 2 into a sound one octave lower. When a user places both his hands on the reference position of the instrument 1, a plurality of keyboards 2,..., 2 are arranged at a position which the user's fingers reach, and the one octave-increasing switch 3 and the one octave reducing switch 4 are arranged so that the position is one where which the user's thumbs are placed. |
