ZooZBeat is a gesture-based mobile music studio. It is designed to provide users with expressive and creative access to music making on the go. ZooZBeat users shake the phone or tap the screen to enter notes. The result is quantized, mapped onto a musical scale, and looped. Users can then use tilt and shake movements to manipulate and share their creation in a group. Emphasis is placed on finding intuitive metaphors for mobile music creation and maintaining a balance between control and ease-of-use that allows non-musicians to begin creating music with the application immediately.