Sure, you started out with good intentions for iTunes, meticulously editing metadata and building perfect playlists. But gradually things got out of hand. BeaTunes is like a Swiss Army knife for your music library. The software fixes all sorts of problems, from metadata errors to spelling mistakes. It also features a couple of neat tricks that will be useful for DJs, including automatic beat detection, and the ability to identify the key of each of your tracks for more seamless mixing.