Cog is an audio player written with Cocoa. It
supports many popular file formats, including Ogg
Vorbis, Flac, Musepack, Mp3, and Monkeys Audio.
Features include seeking, smart shuffle, and the
ability to read Unicode tags.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.