Are all the games supposed to have music, or only one of them?

Catacomb 3D: The Descent has only one track. Catacomb Abyss/Armageddon/Apocalypse 3D has no music but that adds up to mystery atmosphere with variety of level design, textures and enemies. Someone here recommended music from Icewind Dale series as good substitute but since in third part of fantasy trilogy there are futuristic themes you can play fine with Arcanum OST.

Re-release of first game, actually second one also has no music. Set whichever you like. Realms of Chaos or Treasure Adventure Game, also Hexen/Heretic or Rise of the Triad: Dark War sounds nice.