An auxiliary blackboard with music teaching materials is provided to improve visibility by flickering plural LED(Light Emitting Diode) elements forming the corresponding musical note in pressing white or black keyboards. An auxiliary blackboard(A) installed at one side of a large main blackboard(100) and opened and closed or slid is composed of: a piano keyboard part(2) formed on the front side; a control unit installed at the piano keyboard part and composed of a signal input unit including an optical sensor or a pressure sensor to sense touching and a sound generating unit; a speaker(4) connected to the control unit to generate sound; a music paper(6) formed at the lower side of the piano keyboard part; and musical notes arranged on the music paper, to emit the light by interlocking with the piano keyboard part. The musical notes comprise plural LED elements.
展开▼
