Amiga 4000, OS 3.2.1, 3.1.4, 3.1
When P96 is installed, it is impossible to launch Music-X. Shortly after screen switch, Amiga freezes and Guru appears. Please see video:
https://youtu.be/0UsAKEgrHMc
I tested this issue on a few configurations. This happens with ZZ9000 and CV64/3D cards at the moment P96 is installed (both old Aminet and newest IComp versions) in the system. Obviously ZZ9000 requires P96 to work. When CV64/3D with CGX is used, problem doesn't exist and Music-X works fine.
Music-X version 2.0