CLISMS - GO!!!!!

I stumbled over this music video by CLISMS. It sounds really different from what I've heard of them before. Kind of post rock-ish? It's an instrumental track that lasts for over 6 minutes. Sort of slowly builds up and breaks out with a "GO!!!!!", then continues on in a very comfortable pace. Makes me want to listen to it over and over. I especially like the piano parts, and the fact that they have twin drums. The music video is nicely shot too.