|Detail from the marker/music screen|
He's created two web-based projects, In B Flat 2.0 and marker/music in which he experiments with collaborative music. Each project consists of a number of YouTube videos of people playing fragments of music on various instruments. As the user clicks on them they start to play and the result is a random trance/electonica song.
I'm not a fan of either musical genre, but it is an interesting experiment. I could see it being expanded upon, either by allowing more people to drop in snippets of music as time passes, or a randomizer that selected the snippets to activate that would yield a perpetual -- albeit somewhat monotonous -- song.