Am I Just Old?
So, my very first thought upon listening to this: Wild ARMs. It's an older RPG series with a very heavy western focus. Worth checking out, if you haven't, if nothing else, than for the music alone. I will warn, though, it also has a lot of cyberpunk and mysticism involved. (And I know that not everyone is a fan of those.)
That aside, I thought this was an absolutely beautiful piece. I especially love the whistle, and the piano at the very end.