The Overtone Violin is an entirely custom built, radically augmented musical instrument that preserves the traditions of violin technique while adding a whole new set of possibilities for the musician.
J.J. Hegarty and Mikael Fernström create sound sculptures that use electric field sensing (a la Theremin) to detect the proximity and activity of people in public places.
The Octohedral Harp has 72 strings that are tuned to a specific set of just intonations based on the physical geomety of the 3 axis (xyz) that they a running on.
SOUND=SPACE is an interactive multi-user musical environment in which visitors trigger and influence the production of sounds and souns sequences merely by moving about an empty space surveyed by an ultrasonic echolocation system.