Reason, Magix ACID Pro, FamiTracker, Studio One, NoteWorthy Composer, Zynewave Podium, Frescobaldi, Qtractor, LilyPond, Skale Tracker, VividTracker, Furnace Tracker, Bosca Ceoil, musagi, AudioTool, Rosegarden, music21, Noteflight, SunVox, Synthfont, Radium, Schism Tracker, FastTracker clone, ChibiTracker, DefleMask, Impro-Visor, MilkyTracker, AudioMulch, SoundBox, LinuxSampler, Psycle, TabToolkit, ABCJ, MadTracker, MagicScore, Musetracker, DGuitar, Denemo, Prototracker, EasyABC, PixiTracker, GoatTracker, NoteEdit, BassoonTracker, PxTone Collage, SVArTracker, BeRoTracker, MC Musiceditor, MusiCAD, ABCEditor, Klystrack, ABCexplorer, FamiTracker CX, Picatune 2, Tabular are some alternatives to OpenMPT.