KegTracker is a GTK+-based MOD editor for Linux distributed under the terms of the GPL. It uses a modified version of the xmp library by Claudio Matsuoka and Hipolito Carraro Jr. KegTracker and can play all music modules supported by xmp, which is just about everything except Impulse Tracker modules. Its graphical interface includes Track Display, Order Display, Instrument and Sample Display, as well as basic controls you'd expect in a tracker. It also features a cool starfield about box by Rasterman.