Halo 3: Original Soundtrack
From Halopedia, the Halo wiki
The Halo 3: Original Soundtrack is the musical score to Halo 3. The track was composed by Martin O'Donnell and Michael Salvatori, produced by Nile Rodgers, and is a two-disc set much like the Halo 2: Original Soundtrack. The Halo 3: Original Soundtrack was released in one set rather than separate volumes like its predecessor. The Halo 3 OST deviated from the Halo 2: Original Soundtrack, and reverted back to the structure used in the Halo: Original Soundtrack. Comprised of melodies, chants, and trumpets, the Halo 3: Original Soundtrack is broken up into chapters which correspond to in-game levels.
Disc one is broken up into into the beginning levels of the game, and splits at about midway though the campaign. Consisting of 15 songs of longer length, disc one runs slightly longer than disc two. Consequently, disc two is broken up into the latter levels of the game, while including four bonus tracks. One of these bonus tracks is the music present in the E3 2006 Trailer with the exception of the dialog. Composed of music entirely in-game, from start to finish, the story of Halo 3 is played out in musical form.
Quite a few songs on the soundtrack are re-mixed and re-mastered versions of songs that appeared in Halo: Combat Evolved and Halo 2.
Halo: Combat Evolved Remixes
Songs from Halo: Combat Evolved that were remixed are:
Halo 2 Remixes
Songs from Halo 2 that were remixed are: