Source: GitHub.

The Skynetheremin is a distributed theremin that is powered by a Leap Motion controller, a user-interface device that tracks the user’s hand motions. It was written in javascript using node.js, web audio, and a whole lotta libraries.

To view the app, using Chrome (or maybe Firefox, anything else at your own risk) go to:, or

Click and drag on the screen to make your own music.

During a demonstration, you should also hear music coming from the sky.