Created in 2005, The Arc Harp is an outdoor 60-string light sculpture designed for public play and is inherently interactive. The best part about seeing The Arc Harp in public is that you have moments when crowds flock to it and people start to play independently. In the group’s chaotic activity the piece comes to life as if everyone were unknowingly participating in a musical symphony. Each of the light strings in The Arc Harp can sense user movement, speed, and tempo. Each string will mix its own library of sounds to create a depth and tone that compliments public activity and random or organized musical play.

The Laser Harp Series is an evolution of immersive installations using movement and laser light to trigger sound. Lewin has been creating light harps since the mid 1990s. These harps have varied from art installations, stage and performance installations, and large outdoor sculptures.