Bosca Ceoil - A free, easy to use tool for creating music.
MilkyTracker - MilkyTracker is an open source, multi-platform music application for creating .MOD and .
Jeskola Buzz - Jeskola Buzz is an all in one digital audio workstation that allows you to edit music with the perfect blending by using modern tools and technology.
OpenMPT - OpenMPT is a popular tracker software for Windows.
Zynewave Podium - Podium is a modern digital audio workstation (DAW) for Windows.
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.