So the brief is:

“Design a service that allows people to play, listen and contribute to the music in public spaces and situations.”

Meet Global Jam: a native desktop application that uses peer-to-peer technology to bring musicians around the world together to play in distributed virtual bands in real time. Every band aspires to acquire their “five minutes of fame” in the endless song on Global Jam Radio, by being voted up by listeners around the world for this opportunity.