The download button opens the iTunes App Store, where you
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From Ensomniac Studios:
An immersive audio-visual world layered on top of the city of Asheville, North Carolina, invites participants to control a city with their brainwaves. Walk the city with the app and your phone becomes both an instrument to compose a generative soundscape and a window into a world that dynamically changes with your brains neurological reaction. The app is a collective experience that allows infinite participants to actively compose live generative audio and visuals as well as passively watch and listen to what others are creating.