The official Terraria soundtrack is now available at http://re-logic.bandcamp.com/ ! It includes extended compositions from Terraria as well as 5 brand new ones that you will hear in 1.1.
Terraria Soundtrack
Description from the author of the character Alice experimental
Description from the author of the map Trial to survive in the biome of consecration
Description from the author of the character Character DIO from JoJo'
Description from the author of the map