Invention Grant
US08426713B1 Type piano 失效
键入钢琴

Type piano
Abstract:
A sound emitting system includes an abbreviated keyboard coupled to a speaker. The keyboard includes a plurality of rows stationed above a space bar row. The plurality of rows include labeled keys and unlabeled keys. The labeled keys correspond to five accidental notes and eight natural notes within a first octave. The labeled keys are labeled according to a keyboard layout. The speaker emits a note sound when one of the labeled keys is pressed.
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