The entire Split Mod OST.

The Split Mod is owned by instrex, to my knowledge.

All Terraria Split Mod Associated Music

DEHD

You can try the mod at: https://forums.terraria.org/index.php?threads/released-wip-the-split-mod.65235/

Terraria: Split Mod OST (All Tracks)

Spirit pre-fight theme

You can find the mod on:
-------------------------------------------
Terraria Community Forums
• forums.terraria.org/index.php?threads/released-wip-the-split-mod.65235

Terraria: Split Mod OST, Vol. 2

Connection

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

Sunstorm

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

Basalt

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/

Basalt (Alternate)

Stranded Ship biome theme

You can find the mod on:
-------------------------------------------
Terraria Community Forums
• https://forums.terraria.org/index.php?threads/released-wip-the-split-mod.65235/

Terraria: Split Mod OST, Vol. 1

Stranded Ship

Second theme of the boss called Spirit
Follow: @instrex

Hardly inspired by the Terraria Main Theme (Day)which is made by Scott Lloyd Shelly
Original: https://soundcloud.com/terraria-official/overworld-day

You can find the mod on:
-------------------------------------------
Terraria Community Forums
• https://forums.terraria.org/index.php?threads/released-wip-the-split-mod.65235/

Mysterious Person w/ Instrex

Alternative / trailer version on original theme for Stranded Ship. 
See the trailer on YT: https://www.youtube.com/watch?v=CClgaAe3QJ8

You can find the mod on:
-------------------------------------------
Terraria Community Forums
• https://forums.terraria.org/index.php?threads/released-wip-the-split-mod.65235/

Stranded Ship (Alternative)

Pizza Tower OST - Calzonification

Track made by Rodmod
https://soundcloud.com/therodmod

Cover art made by PinPanPaint
https://twitter.com/PinPanArt1

Sugarshack Mines V1 (Outdated)

Enter a place of gore and disgust. The first track to make an appearance from Chapter 3 of the BOI Revelations mod.

Binding of Isaac Revelations Chapter 3 - Gutbuster (floor track /w layer)

Juggernaut, is part of the complete The Binding of Isaac: Repentance soundtrack. Coming to Steam and consoles when Edmund says so!