Created by the PortionFactory, Tangerine! is an amazing iTunes software that allows you to easily create playlists of upbeat music, or playlists for relaxing tunes without sifting through your entire library. It works by analyzing the beats per minute and the beat intensity of all of your music.
Essentially, Tangerine! allows you to create great workout or nap-time playlists without wasting time that you could be spending actually working out, or napping.
For more about Tangerine!, just read more
Tangerine! will load and save playlists to iTunes, it will get the album art from iTunes and it will even export the beat per minute counts to iTunes. If you're working on a Core Duo iMac, it can analyze up to 3000 songs in 20 minutes. Download Tangerine! from the Potion Factory for $24.99. Tangerine! requires Mac OS X 10.4.