Martin O'Donnell – Halo: Combat Evolved - Original Soundtrack

Martin O'Donnell & Michael Salvatori - Halo: Original Soundtrack (2002)

Halo: Original Soundtrack - Music - Halopedia, the Halo wiki

MARTIN O'DONNELL - Lyrics, Playlists & Videos

CD Art Collection: Halo Combat Evolved Soundtrack by LuisJM on DeviantArt

Brothers in Arms – Martin O'Donnell Halo Combat Evolved Brothers in Arms (English Horn) Sheet music for Oboe (Solo)

Ghosts of Reach - song and lyrics by Martin O'Donnell, Michael Salvatori

Bungie Fires Halo Composer Marty O'Donnell Without Cause

Hear Marty O'Donnell play the Halo theme once again - Halo: The Master Chief Collection - Gamereactor

Original Game Soundtrack, Martin O'Donnel, Michael Salvatori - Halo 3: Odst (Original Game Soundtrack) - Music

HALO TRILOGY O.S.T. - Halo Trilogy (Original Game Soundtrack) - Music

Halo: Combat Evolved Anniversary - Game - Halopedia, the Halo wiki

Halo: Combat Evolved - On a Pale Horse Sheet music for Contrabass, Violin, Viola, Cello (String Ensemble)

GAMEPLAY: Halo Interlochen Public Radio

HALO WARS O.S.T. - Halo Wars (Original Soundtrack) - Music

Martin O'Donnell And Michael Salvatori – Навигатор Игрового Мира № 12, 2004 (Halo Original Soundtrack) (2004, MP3, DVD) - Discogs