Theremin
A musical instrument using Chrome, the HTML5 Web Audio API, and a Leap Motion controller. Try it for yourself here!
Instructions
Theremin uses the Leap Motion controller to provide a hands-free way to make music, much like the original theremin. The first hand detected by the Leap Motion controls pitch (y-axis), volume (z-axis), and tone (wrist rotation). The second hand detected is assigned the responsibility of controlling vibrato, specifically its speed (z-axis) and amplitude (y-axis).