1980
Swift-moving Sound Shapes
"It was a very subtle thing yet also complex and powerful. The illusion was complete – something moved through the wall. If you were talking you wouldn’t hear it, but if you were silent – you didn’t see it but your ear saw this thing go across the room. Your perception was that the shape had moved. Explosive, but contradicting the explosiveness because it was so quiet. Aural lightning flashes, but very subtle and soft."
Max Neuhaus 1980