Planet Music Thimi - Casio CTK-3500 Keyboard SPECIFICATIONS Number of Keys: 61 (Piano-style) Touch Response: 2 sensitivity levels, Off Polyphony ( maximum): 48 Number of Built-in Tones [Sound Source]: 400 Stereo Piano Tones:
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Trivia:Why Can't There Be More Than 88 Keys on a Piano? - Musical Instrument Guide - Yamaha Corporation
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