Identify this orchestral piece/possible soundtrack?

I'm can't identify this music although it's infuriatingly familiar. At first I thought it was a classical piece but a friend has suggested it might be a from movie soundtrack, possibly a western?

Thanks for indulging me. Apologies for the poor quality, it's taken from an old bootleg cassette of a rock concert. The band took to the stage whilst this music played. Heres the link:

http://tinyurl.com/6z2nw6


precinct, December 4, 2008; 6:44 PM