Lucky Dragons played an amazing set at Towne Lounge last night. Amongst some other rad tricks was this cool device that he built.
I have no idea how it works, but just by touching other people you could alter the sound and visuals. It was crazy.
I didn't cut much out of the video, because I think it's really cool to watch and listen to. If you get bored and want to see more of the projection, skip to the last 10 seconds.