String-plucking type electronic musical instrument with photo sensor for generating signal for sound

An electronic musical instrument comprising:

• a main body formed in a shape resembling a string-plucking musical instrument,
• a photo sensor provided at the main body to be operated by a player and having a light-emitting unit and a light-receiving unit for receiving light emitted from the light-emitting unit, said photo sensor generating a signal for producing a sound when the light emitted from the light-emitting unit toward the light receiving unit is not detected by the light-receiving unit,
• an indication device provided at the main body and being located along a path of the light of the photo sensor to allow the player to notice a position of operation, and
• a light-emitting device provided at the main body and electrically connected to the light-receiving unit to provide at least two colors, said light-emitting device indicating whether or not the light-receiving unit detects the light from the light-emitting unit by changing the color of emitting light.

An electronic musical instrument comprising:

• a main body formed in a shape resembling a string-plucking musical instrument,
• a photo sensor provided in the main body to be operated by a player and having a light-emitting unit and a light-receiving unit for receiving light emitted from the light-emitting unit, said photo sensor generating a signal for producing a sound when the light emitted from the light-emitting unit toward the light receiving unit is not detected by the light-receiving unit,
• an indication device provided at the main body and formed along a path of the light of the photo sensor to indicate a position of operation to the player, and
• a vibration-generation device provided on the main body at a position where the player touches, said vibration-generation device being electrically connected to the light-receiving unit to indicate whether or not the light-receiving unit detects light.