Cassette tape encased in industrial grade concrete, crafted in an edition of 100.
“You hold in your hand a concrete brick, inside of which there is music. The only way to hear the music contained within is to crack it, but to do so puts the music itself at risk. By your own actions you can either free the music or render it forever unlistenable. Or, you can leave it in its present state where it only has the potential to become music. The musicability of the concrete is entirely in your hands.”