I'm asking this now because I sort of doubt that the handful of remaining PS3 and 360 games are really in the running (and there aren't Wii games coming out anymore). Let's throw DS and PSP games into this generation as well.
What games do you think had the best soundtrack? If you're going to post an answer (and embedded video), if the song is from a pivotal story moment, try to keep it spoiler-free, or remember to use spoiler tags in case everyone hasn't played that game.
I can't even begin to pick a favourite, but to get the ball rolling, Bastion sure is up there: