VividTracker - Amiga Protracker compatible music tracker for iOS
MilkyTracker - MilkyTracker is an open source, multi-platform music application for creating .MOD and .
OpenMPT - OpenMPT is a popular tracker software for Windows.
SVArTracker - An advanced music creation tool, tracker, sequencer - an all-in one modular virtual studio
BassoonTracker - Web-based Amiga music tracker in JavaScript
MuseScore.org - Create, play back and print beautiful sheet music with free and easy to use music notation software MuseScore. For Windows, Mac and Linux.