The soundtrack features pieces of classical music, including Beethoven's Symphony No. 9 in D minor Op. 125 "Choral" (commonly known as Ode to Joy), Symphony No. 7 in A major Op. 92, Richard Wagner's Siegfried's Funeral March from Twilight of the Gods, and Gustav Mahler's Symphony No. 3.
Sadly, they're not credited in the manual.

Contributed by Rola (8307) on Oct 08, 2009. [revised by : Rola (8307)]. -- edit trivia