No, I'm not sure how they get it to not devolve into a wall of feedback... though that'd be pretty rad too.
A Piano In A Gallery. David Cunningham (the guy behind The Flying Lizards! Wikipedia because the main at-least-quasi-official site's down, but while you wait 16 days for that, why not read this interview with Deborah Lizard for your FL Fix) and his new project... A Piano In A Gallery. No, he's not actually PLAYING the piano -- the visitors are. It's a sort of similar thing to both Brian Eno's gallery work with ambient tape loops on different time cycles, creating an ever-shifting collage of sound and David Byrne's recent Playing The Building. The room is mic'd, and the sound is run through a piano, and amplified, both bringing background noises to the foreground AND creating feedback-style loops, as those sounds are also run into the mics and so forth. So... if you happen to be in London.... [via WFMU]