MilkyTracker

[5] It is a clone that attempts to recreate the module replay and user experience of the popular DOS program FastTracker 2,[6][7][8] with special playback modes available for improved Amiga Protracker 2/3 compatibility.

The instrument is then sequenced on a monophonic track that contains note, volume and effect data.

MilkyTracker also supports basic (velocity sensitive) note input via MIDI.

MilkyTracker development started a decade later for the Pocket PC and it still fully operates on rather humble PDAs.

There are no plans to add modern tracker features that would break compatibility with FastTracker.