It is the set of  adjacent depressible levers or key on a musical instrument.

Since the most commonly encountered keyboard instrument is the piano, the keyboard layout is often referred to as the piano keyboard

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键盘是由排列如钢琴的琴键之乐器总称。

不单只能让学生平衡左右脑，还能提高学生的音感发展。

外形轻便，让它在乐队表演中，适合用于伴奏乐器。