Left to right: Yoko Ono, Simone Forti, John Cage, and David Tudor. As cross-disciplinary groundbreakers, both Forti and Ono transgress the boundaries between sound, drawing, poetry, participation, movement, new media, and sculpture. I had long been intrigued by a 1961 Ono screaming piece dedicated to Simone — "Voice Piece for Soprano, to Simone Morris” (Forti was then married to Robert Morris). 0:00 / 0:18 1× Simone Forti performing her elephant dance in 2014 (courtesy Julia Bryan-Wilson)Julia Bryan-Wilson: When did you first meet Yoko Ono? Simone Forti: I must have started hearing Yoko's name around 1960.