Cale is one of the eleven performers of Vexations at the Pocket Theatre in New York - September 9-10, 1963, a composition for piano by Eric Satie, who wrote about this piece:
"In order to play this piece 840 times the performer should prepare beforehand in deep silence and serious immobility."
Cale was invited by his mentor John Cage to be one of the performers. The show made headlines in the New York Times and a photo of Cale and Cage was printed with the review of the show.
He is interviewed briefly and plays through it just on the TV show I've Got A Secret, September 16, 1963.