Seth's battle theme with intro.
Try out the mod: https://forums.terraria.org/index.php?threads/released-wip-the-split-mod.65235/

Sunstorm

Funky skeleton's battle theme.
Try out the mod: https://forums.terraria.org/index.php?threads/released-wip-the-split-mod.65235/

Silence (Insurgent's theme)

New underground biome theme.
Try out the mod: https://forums.terraria.org/index.php?threads/released-wip-the-split-mod.65235/

The most menacing battle theme.
Try out the mod: https://forums.terraria.org/index.php?threads/released-wip-the-split-mod.65235/

Unused variation of new underground biome's theme.
Try out the mod: https://forums.terraria.org/index.php?threads/released-wip-the-split-mod.65235/

One-Shot's battle theme with intro used in a trailer.
Try out the mod if you haven't already: forums.terraria.org/index.php?threa…plit-mod.65235/

bah
some sort of Bypass follow-up I guess?

gah (happy new year!)
very poorly mixed track lets all hope your ears won't drop off after listening to this piece of... music?

duh
very calm at the begininng also 5 minutes long woah!