Ex Falso
Edit tags in your audio files
Ex Falso displays and edits audio metadata tags. Supported formats include MP3, Ogg Vorbis, FLAC, Musepack (MPC), WavPack, and MOD/XM/IT.
A command-line counterpart, Operon, is also distributed as part of this package.
Notable features include: * Freeform tag editing for most supported formats, including ID3v2 * Multiple values for tag keys * Flexible rename-by-tags and tag-by-filename patterns * Extensible using simple Python-based plugins * Edit multiple files in several formats at once