Music

Terraria has over thirty music tracks total as of version 1.2.3, with at least one more planned for the future "Lunar Update". Each one will play and loop endlessly while the player is in a specific biome or while certain events are taking place. Music is individual to each player, and as such its volume can be lowered or disabled entirely within the Options menu.

All the music in Terraria was composed by Scott Lloyd Shelly of Resonance Array.

In-game, it is possible to record and play these songs using the Music Box accessory.

PC soundtrack
The soundtracks can be listened to and purchased from Bandcamp. Currently, several themes are unavailable for purchase. They may be released in the future.

Overworld Day
This is track number 1 in the official soundtrack. It's a cheerful, upbeat tune that's almost surely to be the first one heard by a new player. It plays during the day in the Forest only if it is not corrupted or hallowed.

Eerie
This is track number 2 in the official soundtrack. It's slower and more sinister than most other tracks. It always plays in the Meteorite and Underworld biomes. It will also replace the regular night music on many surface biomes while there's a Blood Moon.

This track also played within The Corruption prior to the 1.0.6 patch.

Overworld Night
This is track number 3 in the official soundtrack. It's a relatively peaceful and relaxing tune. This track plays only during the night in the Forest, Ocean and Snow surface biomes, but is replaced by Eerie when there's a Blood Moon.

Title Screen
This is track number 4 in the official soundtrack. It's a serene tune and is probably the slowest track in the game. It normally only plays in the main menu of the game, before entering a world; however, it can play in-game when its corresponding music box is crafted and used.

Underground
This is track number 5 in the official soundtrack. It's fast and has an almost robotic tone. It plays within the Underground and Cavern layers of the world, which are by far the largest biomes in the game before hardmode is reached. At this point, this track may become significantly more difficult to access, as the Underground Hallow and the Underground Corruption (both of which have different tracks) will quickly start spreading through the underground.

Boss 1
This is track number 6 in the official soundtrack. It's a loud, frenetic tune. It plays during invasions by the Goblin Army and during the fight with the Eye of Cthulhu, King Slime, Eater of Worlds and Skeletron. In hardmode, it also plays during the fight with Skeletron Prime.

Jungle
This is track number 7 in the official soundtrack. It has an unique feel to it with a heavy emphasis on percussion. It plays only in the Jungle (day and night) and its underground extension, the Underground Jungle.

This track was added in the 1.0.5 patch. Before it, the Jungle used the Overworld Day/Night tracks and the Underground Jungle used the regular Underground track.

Corruption
This is track number 8 in the official soundtrack. Its melody resembles the Overworld Day track, but altered to sound much darker and more menacing. It plays in The Corruption during both day and night, but only on the surface. Once a world has entered hardmode, the Corruption will spread aggressively and this track will also play in Deserts, Oceans and Floating Islands that have been corrupted.

This track was added in the 1.0.6 patch. Before it, the Eerie track was used.

Underground Corruption
This is track number 9 in the official soundtrack. This track is a combination of The Corruption and Underground tracks. It plays within the Underground Corruption, likely only accessible once a world has entered hardmode.

This track was added in the 1.1 patch, along with the biome it plays in.

The Hallow
This is track number 10 in the official soundtrack. It has a heavenly tone and makes use of instruments related to this idea, especially the harp. It plays in The Hallow, but only on the surface and during the day. Once a world has entered hardmode, the Hallow will spread aggressively and this track will also play in Deserts, Oceans and even Floating Islands that have been hallowed.

This track was added in the 1.1 patch, along with the biome it plays in.

Boss 2
This is track number 11 in the official soundtrack. It's a very hectic tune, especially at the beginning. It plays during the fight with the Wall of Flesh and The Twins.

This track was added in the 1.1 patch, along with all the possible situations it plays in.

Underground Hallow
This is track number 12 in the official soundtrack. This track is a combination of The Hallow and Underground tracks. It plays within the Underground Hallow, only accessible once a world has entered hardmode.

This track was added in the 1.1 patch, along with the biome it plays in.

Boss 3
This is track number 13 and the last in the official soundtrack as of 1.1.1. It's much slower and less intense than the other boss fights, giving it a more frightening tone. It plays during the fight with The Destroyer, as well as invasions by the Frost Legion. As of 1.2, this track is also played during the fight with the Brain of Cthulhu.

This track was added in the 1.1 patch.

Ocean
This is track number 1 in Volume 2 of the official soundtrack. It is a tranquil theme with a somewhat slower pace than other daytime themes. It plays in the Ocean biome, but only if it hasn't been taken by the Hallow, the Corruption or the Crimson; their respective surface themes will play then.

This track was added in the 1.2 patch. Note that, despite having the same name and being associated with the same biome, this theme is different to that of the console version.

Solar Eclipse
This is track number 2 in Volume 2 of the official soundtrack. It's dark with a varying pace and, keeping with the atmosphere of the event it plays in, features an organ to give it a classic horror feel. It plays during a Solar Eclipse.

This track was added in the 1.2 patch, along with all the possible situations it plays in.

Prior to the 1.2.1.2 patch, it also played during the Pumpkin Moon event, until it was given its own theme.

Rain
This is track number 3 in Volume 2 of the official soundtrack. It's a peaceful and calming theme, slower and less upbeat than others. It plays during rain, overriding the Overworld Day, Overworld Night, Desert and Ocean themes.

This track was added in the 1.2 patch, along with the event associated with it.

Alternate Day
This is track number 4 in Volume 2 of the official soundtrack. It is a cheerful, upbeat tune similar to the Overworld Day theme, but with a slightly more complex composition.

This track was added in the 1.2 patch.

Space
This is track number 5 in Volume 2 of the official soundtrack. It's quick and carefree. It plays when you are in space.

This track was added in the 1.2 patch. Similar to the Ocean theme, the Space theme is different from the console version's.

Golem
This is track number 6 in Volume 2 of the official soundtrack. It has a fast pace without being particularly dark or menacing. It plays during the fight with the Golem.

This track was added in the 1.2 patch, along with all the possible situations it plays in.

Mushrooms
This is track number 7 in Volume 2 of the official soundtrack. It's an offbeat, trippy piece. It plays in the Mushroom Biome, both on the surface and underground.

This track was added in the 1.2 patch.

Crimson
This is track number 8 in Volume 2 of the official soundtrack. It's an unnerving theme with a faster pace than that of the Corruption. It plays in the Crimson. Unlike the Corruption and Hallow, the Crimson uses the same theme both on the surface and underground.

This track was added in the 1.2 patch, along with all the possible situations it plays in.

Lihzahrd
This is track number 9 in Volume 2 of the official soundtrack. It is a mysterious and exotic sounding theme. It plays in the Lihzahrd Temple.

This track was added in the 1.2 patch, along with all the possible situations it plays in.

Ice
This is track number 10 in Volume 2 of the official soundtrack. It is a relaxed, somewhat slow paced theme with a distinct feel. It plays in the surface Snow biome.

This track was added in the 1.2 patch.

Plantera
This is track number 11 in Volume 2 of the official soundtrack. It is an unique, fast track with a rock-and-roll tune and prominent use of electric guitars. It plays during the fight with Plantera.

This track was added in the 1.2 patch.

Dungeon
This is track number 12 in volume 2 of the official soundtrack. It a sinister theme that makes use xylophones, which, in some popular works (especially old cartoons), are used to represent the sounds that bones make. It plays in the dungeon.

This track was added in the 1.2 patch. Before it, the Dungeon used the Eerie theme.

Desert
This track is currently absent from the official soundtrack. It is a simple, quiet theme inspired by ancient Egyptian music as commonly portrayed in other videogames and films. It plays in the Desert biome during the day, as long as it's not raining and the desert hasn't been taken over by the Hallow, Corruption or Crimson.

This track was added in the 1.2 patch, prior to which the Overworld Day theme was used. This theme was originally exclusive to the console version and was brought over to the PC version without being altered or replaced, unlike the Ocean and Space themes.

Underground Snow
This track is currently absent from the official soundtrack. It is a calm, mysterious theme slightly reminiscent of the Alternate Underground theme. It plays in the Underground Snow biome.

This track was added in the 1.2 patch, along with all the possible situations it plays in. This theme was originally exclusive to the console edition, where it is used differently.

Boss 4
This track is currently absent from the official sountrack. It is a frenetic, serious theme. It plays during the fight against the Queen Bee.

This track was added in the 1.2 patch, along with all the possible situations it plays in. This theme was originally exclusive to the console edition, where it is used differently.

Pumpkin Moon
This track is currently absent in the official soundtrack. It plays during the Pumpkin Moon event.

This track was added in the 1.2.1.2 patch, prior to which the event used the Eclipse theme.

Alternate Underground
This track is currently absent in the official soundtrack. It has a different, less whimsical feel than the original Underground theme. It plays within the Underground and Cavern layers of the world, alternatively with the other Underground track.

This track was added in the 1.2.2 patch.

Frost Moon
This track is currently absent in the official soundtrack. It plays during the Frost Moon event.

This track was added in the 1.2.2 patch, along with all the possible situations it plays in.

Lunar Boss
This is track number 13 in volume 2 of the official soundtrack. It will presumably play during the fight with the Lunar Boss once it has been added to the game.

This track is not yet in the game, but will likely be added in a future update.

Console soundtrack
The console soundtrack features a mix of the PC version's tracks and several additional songs. Although Blake Robinson was commissioned to create the music for the trailers, the in-game music was created by Scott Lloyd Shelly.

Ocean
A happy sounding track that plays in the Ocean biome. While the 1.2 patch for PC added an Ocean theme to that version, the console version's track is completely different and remains exclusive.

Snow
This track plays in the Snow Biome. This track was later added to the PC version in patch 1.2, but it plays in the Underground Snow biome instead.

Space
This track plays in Space. Similar to the Ocean theme, patch 1.2 added a Space theme to the PC version, but it is completely different to the console edition's, which remains exclusive.

Tutorial
This track plays during the tutorial.

Boss 4
This track plays during the battles against the Eye of Cthulhu and Ocram. This track was later added to the PC version in patch 1.2, but it is only used for the battle against the Queen Bee.