ModPlug

ModPlug is the name for the series of computer software for creating and playing module files, originally developed by Olivier Lapicque.
 * ModPlug Player, a module player developed in conjunction with the original ModPlug Tracker project and the original ModPlug browser plugin
 * ModPlug Tracker, now known as OpenMPT
 * LibModplug (decoding engine) public domain software for the open source multimedia framework GStreamer