Quod Libet is a GTK+-based audio player written in Python, using the Mutagen tagging library. It’s designed around the idea that you know how to organize your music better than we do. It lets you make playlists based on regular expressions (don’t worry, regular searches work too). It lets you display and edit any tags you want in the file, for all the file formats it supports.
Unlike some, Quod Libet will scale to libraries with tens of thousands of songs. It also supports most of the features you’d expect from a modern media player: Unicode support, advanced tag editing, ReplayGain, podcasts & Internet radio, album art support and all major audio formats – see the screenshots.
Ex Falso is a program that uses the same tag editing backend as Quod Libet, but isn’t connected to an audio player. If you’re perfectly happy with your favorite player and just want something that can handle tagging, Ex Falso is for you.
The first tutorial is an overview; the second tutorial is a step-by-step guide on how to create graphic elements with Foobar2000’s drawing functions; and the third tutorial is a detailed presentation of CUI and PSS customization functions.
Mp3tag is a powerful and easy-to-use tool used to edit the metadata of audio files. It supports batch tag-editing of ID3v1, ID3v2.3, ID3v2.4, iTunes MP4, WMA, Vorbis Comments and APE tags for multiple files at once, covering a variety of audio formats.
Furthermore, it supports online database lookups from Amazon, Discogs, MusicBrainz or freedb allowing you to automatically gather proper tags and download cover art for your music library.
You can rename files based on tag information, replace characters or words in tags and filenames, import / export tag information, create playlists and more.
freedb is a free CD and music data base service to look up textual metadata about music, audio or data CDs. This is done by a client which queries the freedb database. As a result, the client displays the artist, CD title, track list and some additional information. Clients are for example CD players, CD rippers and CD burning software.