Mud Muse

One of the show’s highlights is Mud Muse (1968-71), which is 1,000 gallons of bubbling Bentonite clay in a 12ft by 9ft (365cm x 274cm) tank.The work is also something of a technical feat in that it is listening to itself. The mud’s bubbles and spurts are measured by microphones, which in turn trigger a complex series of pumps to release more air and create more bubbling.