Tagtraum Industries BeaTunes 2.1.6

What started out as a BPM detection tool for DJs, runners and dancers, has become one of the finest iTunes™ library management tools around. beaTunes' powerful inspection feature let's you clean up your iTunes track data in a way unrivaled by any other software on the market today. Easily find typos or different spellings of artists' names, automatically fill in the album artist names, and much more. No more R.E.M. and REM in your iPod's artist list! beaTunes can even help you to find the titles of tracks that have no artist or title associated with them. And once you have a clean collection, the built-in playlist generator works even better.
Here are some more examples of what you can do with beaTunes:
Automatically determine BPM (beats per minute) and store the result in iTunes
Manually determine BPM and store the result in iTunes
Inspect and fix your music library (typos, wrong genre etc.)
Sort existing playlists so that matching songs succeed each other
Create matchlists, i.e. playlists based on one or more sample songs
Browse songs from your music collection that match the currently selected song
Discover albums that aren't in your music collection, but would complement it
Keep up to date through Amazon™ album charts
Automatically set start and end times of songs based on their volume
Categorize songs by their sound color
Build playlists per drag and drop
Create blog entries on blogger.com with your favorite playlist or songs
Add del.icio.us like tags to your songs
Look up track metadata using acoustic fingerprints
Detect the language of lyrics already stored in iTunes

To avoid disappointment: Due to the very nature of digital rights management systems (DRM) like FairPlay, beaTunes cannot analyze files protected by these systems. Note that most products bought from iTunes Music Store™ fall into this category. The exception are iTunes Plus songs.