Unmixer is a web app that takes a song and chops it up into smaller loops. This loops can then be mixed by the user. It’s pretty fun, I could see music classrooms playing around with this and students performing their best mix.
To get started, you give Unmixer a song to chop up. There is also a pre-load option since it can take several minutes to create loops from a song. I uploaded Def Leppard’s Rock of Ages and the site took about 7 minutes to create the loops. Once the loops are loaded, clicking on a loop will toggle between off and playing.
It is pretty fun to play with the results!