Loop has been created by Nokia to give Nokia N8 and C7 owners something to boast about. The app's exclusive to those two phones and lets users create their own music tracks by sampling and mixing the world around them.
You load up a default background sample loop or take the time to create your own, then add "dozens" of your own samples of whatever's happening and making noise around you to the mix. Loop automatically edits the timing and pitch of the samples, so it all sounds right with the minimum of fuss. There's a dog-based demo on YouTube illustrating what's possible - and the app's on the Ovi Store right now. [Nokia]