John Cage’s 4:33 performed by the BBC Symphony Orchestra.

Painting Manufacture Unit by Roxy Paine. A spray nozzle mounted on a large moving arm travels in front of a canvas, spraying acrylic paint as it makes its pass. After a programmed amount of inactivity, which allows the paint to dry, the arm gets to work again and makes another pass.

Auto Sculpture Maker creates an endless series of amorphous sculptural blobs.

Drawing Machine floods paint into a mixing chamber and dispenses it via a spray nozzle that travels a pre-programmed course over the paper. After making its pass and releasing its paint load, the machine rests, allowing the paint to dry-before another pass is made. All three machines by Roxy Paine.