Spaces is an interactive multi-touch musical application. Designed as a minimalist interface to free musicians from traditional compositional markers such as frets and keys, the environment enables musicians to compose intuitively through immediate visual and sonic feedback. In this video, Spaces mediates a spontaneous composition and performance of a slow-moving ambient soundscape. Spaces was developed by Jordan Hochenbaum, Owen Vallis, Dimitri Diakopoulos, and Jim Murphy for the Brick Table.