John Luther Adams's Inuksuit at the Armory was about as heavily videographed as an Animal Collective show, and material has begun to show up on YouTube. Above is my own rudimentary one-minute video. Someone's also uploaded a neatly filmed 23-minute excerpt. (Mark Morris glides through the frame about six minutes in.) More will follow. But no recording, even the most sophisticated, will begin to capture the head-spinning richness of the sound in the room. In fact, these videos are highly misleading when it comes to the sonic dimension. They do, however, give a sense of the visual impact.