| 摘要 |
A device for teaching operation of a keyboard musical instrument includes indicator lights associated with melody keys and both a changeable pictorial image and light indicators associated with the chord keys. A program of audio instructions includes cue signals for operating the melody key indicators and for changing the pictorial image. The chord key indicators are, however, activated not from the program but from indicia at the pictorial image producer. A color association is established between the chord indicator lights and the pictorial image.
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