Tracks 1~11, 14, 16~17, 20, 22~25, 27 & 30 Includes songs and instrumental music based on the soundtracks from Halo: Combat Evolved and Halo 2, which were composed and performed by Martin O'Donnell and Michael Salvatori. Music Arrangements & Additional Composition: Tilman Sillescu, Alexander Roeder, Alex Pfeffer, Markus Schmidt, Robin Hoffmann, Marco Jovic, David Christiansen Produced & Directed by: Pierre Langer, Holger Busse Orchestra & Conductor: Staatskapelle Halle / Germany, Bernd Ruf Tracks 12, 13, 15 & 18 Composed and Arranged by Yasuharu Takanashi Track 19 Composed and Arranged by Naoyuki Hiroko Tracks 21, 26, 28 & 29 Composed and Arranged by Tetsuya Takahashi