i know that this topic is month old, but pex is still active and maybe he still plays it
so pex, open your JVSOUND.CFG in the merchant prince directory and replace everything with this
Code:
blaster=A220 I7 D1
fmspeed=128
16bit=1
midi=blaster
wave=blaster
for some reason, automatic config sound blaster won't play both music and sound at once, when it also defines H5 (which stands for hdmi=5) and some kind of T6 (which stands for six teletubbies, perhaps?) in the first line of the config file
i'm reuploading the game with proper configs