Create music playlists, display, and edit song tags.
Quod Libet is a GTK+-based audio player written in Python, using the Mutagen tagging library. It lets you make playlists based on regular expressions, display and edit any tags you want in the file, for all the file formats it supports. Quod Libet will scale to libraries with tens of thousands of songs. It also supports most of the features from a modern media player such as unicode support, advanced tag editing, Replay Gain, podcasts and internet radio, album art support, and all major audio formats.