If you are a Mac user, check out Tangerine, a beta app from the Potion Factory (sounds like something out of Harry Potter, right?). By going through your iTunes music library and analyzing all of the songs to determine their BPM (beats per minute) and beat intensity, Tangerine hopes to simplify the creation of playlists for all your different moods. This is something that I am notoriously bad at. And even if you have meticulously organized playlists, you’ve gotta love the orange theme that this app is built around.
