The artist filled the gallery window with a cross section of the material from below the sidewalk: heavy rocks, gravel, clay, sand, soil and dust. The occasional piece of trash can be seen. This vertical landscape has been burrowed through with tunnels suggesting the presence of mice or rats. Above the horizons of soil and muck a running wheel connected to a music box plays Beethoven’s “Für Elise.” The wheel spins in accordance with the volume of bitcoin transactions per second, tracked 24 hours a day and 7 days a week. With the rate of trade rising and falling, the music hastens and slows in direct proportion. While the layering of soil implicates a geological past, the music plays in real time.