If you've been following the Mouth Taped Shut blog, you probably noticed that it now directly links to both What is Hidden in Snow and Comes Forth in the Thaw. The three sites work together to reveal clues to the whereabouts of actual props from the movie The Girl with the Dragon Tattoo, which as you know is being scored by Trent Reznor and Atticus Ross.
On Comes Forth in the Thaw, stills from the film cycle in and out behind images of frost, while music and dialogue play in the background. As it turns out, the music in the background actually changes as often as four times a day, although the changes can be very subtle as the day progresses. Chances are pretty good that the music is derived from deconstructed songs used in scoring the film.