Sonic Pi uses code to compose a dance party (Opensource.com)

Opensource.com has an interviewwith Sam Aaron, creator of Sonic Pi. "Sonic Pi is a musical instrument that happens to use code as its interface. It's also a programming environment that happens to be very capable of making sophisticated sounds. It's actually many things-a tool for learning how to program, for exploring new notations for music, for improvising electronic music, for collaborating on musical ideas via text, for researching new programming techniques related to time and liveness. Most of all, it's a lot of fun."