In Bb
In the YouTube mash-up spirit of Kutiman, a project called In Bb presents you with a grid of unrelated YouTube videos that all happen to be in the key of B-flat. There is no percussion or meter, so things will always blend together smoothly no matter when you start or stop each video. Try to resist the urge to play them all at once - turn on a couple at a time, then add new ones as time goes on. The effect is incredibly beautiful.
