beets is described as 'Beets is the media library management system for obsessive-compulsive music geeks. The purpose of beets is to get your music collection right once and for all. It catalogs your collection, automatically improving its metadata as it goes using the MusicBrainz database' and is an app in the Audio & Music category. There are four alternatives to beets for a variety of platforms, including Mac, Android, Linux, Windows and BSD. The best alternative is MusicBrainz Picard, which is both free and Open Source. Other great apps like beets are MusicBrainz (Free, Open Source), Gracenote (Paid) and Demlo (Free, Open Source).
Gracenote, Inc., formerly called CDDB (Compact Disc Data Base), is a company that maintains and licenses an Internet-accessible database containing information about the contents of audio compact discs and vinyl records.
Demlo organizes your music library automatically and dynamically. It runs a chain of user-defined scripts using variables such as tags and file properties. This way it yields virtually unlimited customization power to the user.