v motion

"The Motion Project was a collaboration between a lot of clever creative people working together to create a machine that turns motion into music. The client for the project, Frucor, together with their agency Colenso BBDO, kitted-out a warehouse space for this project to grow in and gathered together a group of talented people from a number of creative fields."  
via http://www.custom-logic.com/blog/v-motion-project-the-instrument/