From Just Solve the File Format Problem
Ultra Tracker is a tracker for MS-DOS. It produces modules with the extension .ult. There are at least two versions of this format, as changes were made post-v1.3 of Ultra Tracker.
- Ultra Tracker file format
- Another version of file
- Version with additional info on v1.4/5
- 1994 "advanced music formats" discussion that covers Ultra Tracker