A Music Hack Day event in Boston has yielded a funny little web app The Infinite Jukebox creates an infinitely long and ever-changing version of uploaded tracks and visualizes the process.
It also shows how todays chart music material is copy an pasted together in the studio as it performs really well on such material meaning you can’t really hear the cuts. On older tracks, were larger portions of the song are recorded in one take, it doesn’t work that well.
If you want to test. At the moment it only seems to work with Chrome and Safari not with Firefox.