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. It then provides a bouquet of tools for manipulating and accessing your music.

Here's an example of beets' brainy tag corrector doing its thing:

$ beet import ~/music/ladytron
Tagging:
    Ladytron - Witching Hour
(Similarity: 98.4%)
 * Last One Standing      -> The Last One Standing
 * Beauty                 -> Beauty*2
 * White Light Generation -> Whitelightgenerator
 * All the Way            -> All the Way...

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:

• Fetch or calculate all the metadata you could possibly need: album art, lyrics, genres, tempos, ReplayGain levels, or acoustic fingerprints.
• Get metadata from MusicBrainz, Discogs, and Beatport. Or guess metadata using songs' filenames or their acoustic fingerprints.
• Transcode audio to any format you like.
• Check your library for duplicate tracks and albums or for albums that are missing tracks.
• Clean up crufty tags left behind by other, less-awesome tools.
• Embed and extract album art from files' metadata.
• Browse your music library graphically through a Web browser and play it in any browser that supports HTML5 Audio.
• Analyze music files' metadata from the command line.
• Listen to your library with a music player that speaks the MPD protocol and works with a staggering variety of interfaces.

If beets doesn't do what you want yet, writing your own plugin is shockingly simple if you know a little Python.

Learn more about beets at its Web site. Follow @b33ts on Twitter for news and updates.

You can install beets by typing pip install beets. Then check out the Getting Started guide.

Beets is by Adrian Sampson with a supporting cast of thousands. For help, please contact the mailing list.