It wasn't hard to identify the house being warmed as I drove through the dark streets of a central Seattle neighborhood. It was a small house on the corner, illuminated brightly from within, with the whirling figures of dancers filling every window. I gingerly pressed open the front door until it encountered resistance in the form of a body inside, and slipped through the narrow opening. Inside the house was devoid of all furnishings. A group of musicians was standing pi