[4] The program allowed for four-channel hardware mixing on all Amiga computers, but unlike subsequent versions, limited the number of samples/instruments in a song to 15.
It allocated the four channels in strict fashion: melody (lead), accompaniment, bass, and percussion.
[6] However, the interface that The Ultimate Soundtracker pioneered became a standard for game sound production on the Amiga.
In 1989, the program was further improved upon by two Swedish programmers, Pex “Mahoney” Tufvesson and Anders “Kaktus” Berkeman, who released a version known as NoiseTracker.
Protracker was another successor, released in 1991, which solved the stability problems and made several changes to the user interface.