Quod Libet is a music management program. It provides several
different ways to view your audio library, as well as support for
Internet radio and audio feeds. It has extremely flexible metadata
tag editing and searching capabilities.

Supported file formats include Ogg Vorbis/Opus/Speex/FLAC, MP3,
FLAC, MOD/XM/IT, Musepack, Wavpack, MPEG-4 AAC, Monkeys Audio, WMA,
SPC, MIDI.