Beautifully haunting score, anybody agree?

This movie's got a musical score to it that I can't put my finger on it but there's just something to it that embeds itself into your mind and seems kind of haunting. I don't know why, but every time I hear it, it just sounds so familiar to something I've heard before, maybe long ago, but I can't recall anything of similarity to it. Does anybody else get that when they hear the music in this movie?