At the very last minute a track from the geophone recording ready for use. We edit the loudest bits down so the speaker doesn’t blow and then play it in the 4-story silo stairwell. It’s ready with a few minutes to go — a subwoofer vibrates 20 metre long waves of sound. And then a whirlwind run around other people’s studios to have a look. Total visitors I saw = 25! Most of these were other participants in the project. Somewhat short of the 100 to 150 predicted. Why didn’t they run it tomorrow afternoon with the Biennale?