As far as I'm aware, there is no way to add music - you can only replace. There are a couple soundtracks that I included a couple times to fully overwrite the Dominions 6 soundtrack, I don't recall which, but if you find duplicates, you could try to replace those.

Keep in mind that ids 76 and 77 are used when watching battles.

beautyful <3

Im trying to modify this to add Dominions 5 music.
There is NO way what so ever to just ADD without replacing right?
Tried using the sound slots 154-178 but havent heard the new tracks even once.
Sigh why cant the devs just let us add music.

I love Eddie Wang