High Quality Content by WIKIPEDIA articles! The Halo 2 Original Soundtrack is the soundtrack for Bungie`s 2004 video game Halo 2. The soundtrack was released as two separate volumes, released almost two years apart. Volume 1, released at the same time as Halo 2 on November 9, 2004, contains arranged instrumental pieces written by Martin O`Donnell and his partner Michael Salvatori, as well as "inspired by" tracks from bands Incubus, Hoobastank and Breaking Benjamin. Volume 2 was released on April 25, 2006 and contains all the game music arranged in a suite form.