Tag is an elegant metadata editor for all of your music.
Tag supports editing of FLAC, Ogg Vorbis, Musepack, WavPack, Monkey's Audio, Speex, True Audio, Apple Lossless, AAC, MP3, WAV, and AIFF files. The intuitive interface simplifies common editing tasks and also allows more advanced changes including editing multiple album artwork images.
For files with incomplete or missing metadata Tag can guess tag values by matching the filename to a user-defined pattern. Tag can also search Discogs to flesh out any missing metadata, and Tag can even identify and tag unknown files using AcoustID.