Audio_rec is a project mainly written in ..., it's free.
A few scripts I hacked up to help sort through a large directory of nameless music files
==README==
AudioRec's purpose is to recursively sift through a large collection of misnamed audio files and rename them to match the data in their respective tags. It can also organize the files in a temp location if directed to do so.
libid3-3.8.3-dev (debian lib) id3lib-ruby (ruby gem) flacinfo-rb (ruby gem)
MP3 FLAC