Pata Tracker - Simplified music tracker to compose chiptunes.
MilkyTracker - MilkyTracker is an open source, multi-platform music application for creating .MOD and .
DefleMask - An old-school game music tracker for an ample variety of systems.
OpenMPT - OpenMPT is a popular tracker software for Windows.
FamiTracker - FamiTracker is a free windows tracker for producing music for the NES/Famicom-systems.
BassoonTracker - Web-based Amiga music tracker in JavaScript