Okay so I was watching this video:
(WARNING IT HAS SPOILERS FOR HALF LIFE 2)
http://www.youtube.com/watch?v=RaFVCtidfNM&feature=rec-fresh
And for the first 33 seconds, I hear this really cool orchestral score. I sift through my HL2 soundtrack but none of those songs fit the one in the video. Is the music not from Half Life 2 or is there a track that I'm missing? If you know the song, please post here and tell me what it is. Many thanks.