Does anyone know how to turn the music volume down? I don't see any options in the conf file, and as far as the in-game options go, the music volume slider doesn't seem to do anything. So the volume is either deafeningly loud, or completely disabled.
Sure I could just adjust my PC volume settings but just thought I'd ask :)

Edit the dosbox_darksun2_single.conf file

Use the parameter MIXER CDAUDIO 50:50. You could add this just under ":launcher" line, for example.
I don't have Dark Sun 2 installed right now but the conf should be very similar to the first game. That parameter use to be added after the mounting lines in the conf.

Where 50:50 would be the left and right volume channels at half volume being 100 the maximum. You can change it ad taste.

CDAUDIO reffers to the Cd Audio obviously but this parameter can be modified with:

MASTER
DISNEY
SPKR
GUS
SB
FM

Depending what you want to be changed specifically.

Greetings