PURPOSE: A contactless keyboard musical instrument is provided to minimize performance learning time by simply changing a performance method into a contactless performance method.;CONSTITUTION: An LED(Light Emitting Diode)(170) emits light. An IR(Infrared Ray) sensor(180) is separated from a panel(160) and a frame unit. The IR sensor senses the performance motion of a player located on the upper side of IR beam. A control module changes an electrical signal into a media signal. A sound system processes the sound signal of a sound unit. A video system transmits and receives the media signal of the sound unit through a media transmission and reception apparatus.;COPYRIGHT KIPO 2012
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