A short section of Karlheinz Stockhausen’s Helicopter String Quartet, performed by four musicians and four helicopter pilots. Another performance.
The New York Times offers some insight into the execution of the piece:
“Sometimes he was playing with his eyes closed,” reported the pilot who flew with Roham de Saram, the cellist. “When I saw him playing very fast, I tried to turn and fly faster to influence him.” Another pilot revealed that he had tried “sharp turns and loops but could not disturb” his passenger, Mr. Arditti.