The laser harmony is a musical instrument made of light. A fan of beams shoots up from the floor into the night sky. The performer can create music by placing their hands in the beams. Not only does “breaking” the beam produce notes, but sliding the hand along the beam will also change the sound.There are no strings. Instead, beams of laser light are projected from the bottom of the harp. These beams strike light sensors at the top of the frame. (or are picked up reflectively by sensors at the base of the harp) When something (a hand, foot, etc.) blocks a beam, a note is triggered on a synthesizer or some type of tone generator.