The maps in Quake 3 are a range of space and demonic places and thus, the music respects this and has different types to suit each type of map. This is in contrast to Quake 1 and II, which have a single type of music.
Quake 3's music is a collaboration of Sonic Mayhem and Front Line Assembly. Sonic Mayhem has released an album containing their portion of the soundtrack, giving previously untitled tracks names, as well as bonus tracks not found in the game.
The audio is integrated into the game's data files, so there is no need to have the CD inserted in order to hear the music.
Quake 3 Arena Theme Song OST
01 - Quake 3 Theme
Quake 3 Arena Deathmatch OST
02 - Deathmatch
Quake 3 Arena Hell's Gate OST
03 - Hell's Gate
Quake 3 Arena Tier OST
04 - Tier
Quake 3 Arena Lost Souls OST
05 - Lost Souls
Quake 3 Arena Old Castle OST
06 - Old Castle
Quake 3 Arena Quad Damage OST
07 - Quad Damage
Quake 3 Arena Sacrifice OST
08 - Sacrifice
Quake 3 Arena Fraggot OST
09 - Fraggot
Quake 3 Arena Rocket Jump OST
10 - Rocket Jump
Quake 3 Arena Xaero OST
11 - Xaero
Quake 3 Arena Battle Lost OST
12 - Battle Lost
Quake 3 Arena Battle Won Credits OST
13 - Battle Won (Credits)