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. Then it provides a bouquet of tools for manipulating and accessing your music.
Because beets is designed as a library, it can do almost anything you can imagine for your music collection. Via plugins, beets becomes a panacea:
- Find, download, and embed album art from multiple sources.
- Fetch lyrics for all your songs from databases on the Web.
- Guess genres based on Last.fm tags.
- Clean up crufty tags left behind by other, less-awesome tools.
- Automatically build “smart playlists” based on queries over your library database.
- Transcode music for your mobile device.
- Manage your MusicBrainz music collection.
- Analyze music files' metadata from the command line.
- Browse your music library graphically through a Web browser and play it in any browser that supports HTML5 audio.
- …and lots more.
If beets doesn't do what you want yet, writing your own plugin is shockingly simple if you know a little Python.