Which game has the best soundtrack?

Can't speak for TS3, but all 3 of the others have tracks that are - for me - great, neutral and duds. One of my favourites is from TS2, no idea of the name, but it has a haunting quality that brings images of long coal trains winding their way through Appalachia. Can even hear tie 'woo-oo' in the distance. Will leave that on even if done whatever brings the music up. For TS4 it's one that came with the magic pack. There are different versions and there is one that sounds like a movie theme. Would be perfect if my book ever became a movie. The music has a sound that is both mystical and majestic, which captures the book's theme perfectly.