If my memory is correct, I was first exposed to Ken Burns' "Civil War" in Mr. Stover's high school history class. I can't tell you if we watched highlights from it or the whole series but I can can tell you that I was drawn in by some of the music -- and one song in particular, The Ashokan Farewell by Jay Ungar.
Music to me is all about the emotion it invokes. If music doesn't make me feel something inside, I generally don't listen to it. Although the lyrics of songs can be very powerful, instrumentals often prompt some of the deepest emotions because the music is left up to the interpretation of the listener. These songs have the luxury of meaning whatever it is you need them to. And if you could translate the emotion of sadness or sorrow directly into notes on a staff, it would probably come out as The Ashokan Farewell.
(Here's the link to the song if the embeded player doesn't load.)