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.
Bosca Ceoil - A free, easy to use tool for creating music.
DefleMask - An old-school game music tracker for an ample variety of systems.
Zynewave Podium - Podium is a modern digital audio workstation (DAW) for Windows.
MilkyTracker - MilkyTracker is an open source, multi-platform music application for creating .MOD and .
Renoise - Renoise is a digital audio workstation.