If this happens, it should be an Amiga battle with every Amiga format, including:
AHX (already a format here)
MOD (of course)
Future Composer (similar to AHX but allowed samples too!)
SIDMon (used for this classic
https://www.youtube.com/watch?v=chv-L55dNq0 )
OctaMED (+ its softsynth please?)
https://www.youtube.com/watch?v=bl8rjgcpWZk
Startrekker (also known as Audio Sculpture on the Amiga and ST)
Digibooster Pro (8chan mod!)
Oktalyzer (8chan mod!!)
More obscure ones:
Brian Postma's SoundMon (Allister Brimble used this for games)
JamCracker (Bjorn Lynne used this)
Delta Music 2 (Allister Brimble used this!)
FredMon (used commercially on Fuzzball)
Custom sound engine (raw engines to be played by Deliplayer 2)