FamiStudio - FamiStudio is very simple music editor for the Nintendo Entertainment System or Famicom. It is designed to be easier to use than FamiTracker, but its feature set is also much more limited.
MilkyTracker - MilkyTracker is an open source, multi-platform music application for creating .MOD and .
MOTU Digital Performer - Get inspired, then refine your mix — all in a singular workflow.
OpenMPT - OpenMPT is a popular tracker software for Windows.
SunVox - SunVox is a small, fast and powerful modular synthesizer with pattern based sequencer (tracker).
iMaschine - iMASCHINE puts professional groove production in the palm of your hand.