Michael Schwendt

Original Protracker and most Soundtracker forks cannot define subsongs within the module data. The single "song" with a MOD file is defined as the number of steps within the sequencer's track table. The total size of the file format's track table is fixed, though, and therefore it can be abused by filling steps past the end of the official single song. Where within the sequencer such subsongs start and end cannot be specified in the header anywhere.