Swans new album is my favorite of theirs that I've heard. They do this thing where once they get locked in, they build to a peak and where a post-rock group would pull back and gear up for the next swell, Swans just keep going at full-tilt and there's nothing to stop them. You half expect the song to just continue forever. This is a song like that except it's not forever, just 10 minutes.
httpv://www.youtube.com/watch?v=BkqF3kulYB0