There aren't dungeons in total miner forge.
Quitcherbitchen.
They're not dungeon specific, dumbass.
He must've ment the ambient/cave#.ogg sounds because
there is no dungeon music.
The only things in the game specificly related to the dungeons are mossy cobblestone and the mod spawners, and there are no sound files related specificly to the dungeon, however the ambient music can be played from a dungeon because any 3x3 space that has a low light level can play the sound.