Sumthing Else Music Works, Inc., through its licensing relationship with Microsoft Game Studios, is publishing the Halo 3 soundtrack.

The original soundtrack features the game’s original music score and will be released on November 20th as a double-CD set or via digital download at umthingdigital.com.

The official Halo 3 Original Soundtrack features the new symphonic compositions by Martin O’Donnell and Michael Salvatori, the award-winning composers behind the best-selling Halo: Combat Evolved, Halo 2 Volume One and Halo 2 Volume Two soundtracks. In addition to new original tracks written for the Halo 3 video game, the Halo 3 Original Soundtrack also includes new arrangements of the game’s musical themes that Bungie’s audio director and composer Martin O’Donnell recorded with a full live orchestra and chorus. The 2-CD set amounts to two hours of original music from the game Halo 3.

The Xbox 360 title beat previous US sales records set by blockbuster openings for entertainment events such as the release of Spider-Man 3 and Harry Potter and the Deathly Hallows. Halo 3 was released in 37 countries and 17 languages. To date, more than 20 million copies of the games in the Halo trilogy have been sold worldwide.