Liubo Borissov has created a music box with Ableton Live and Max4Live, and he use a webcam to handle it. Download the source here:

Some info about him:

Liubo Borissov is an assistant professor at Pratt Institute’s Department of Digital Arts. He received baccalaureate degrees in Mathematics and Physics from Caltech and a doctorate in Physics from Columbia, where he also studied electro-acoustic music at the Columbia University Computer Music Center. He holds a masters in Interactive Telecommunications from NYU’s Tisch School, where he was a Global Vilar Fellow in the performing arts. He has taught at Harvestworks, Parsons School of Design and the Columbia University Graduate School of Architecture, Planning and Preservation.

In his works, he explores the interface between art, science and technology. His multimedia installations, performances and collaborations have been featured throughout Europe, Asia and North America, including the New Interfaces for Musical Expression conference, the International Computer Music Conference, SIGGRAPH, the Spark Festival, the Lincoln Center Summer Festival, the Kennedy Center, and the Carnival Center.

Via wire to the ear