From Animusic DVD. http://www.animusic.com
PIPE DREAM has been voted one of the 50 greatest animation projects ever (by 3D World magazine). A group of percussion instruments perform music by way of metal balls that fly out from pipes.
From: (http://video.google.com/videoplay?docid=-5503582578132361295&q=animusic)
From: (http://video.google.com/videoplay?docid=6310106479105560495&q=animusic)
From: (http://video.google.com/videoplay?docid=530602973706112385&q=gyro+drums&pl=true)
From: http://video.google.com/videoplay?docid=5775502490907191476&q=animusic+is%3Afree&pl=true