Which of the people that Branden W. Joseph wrote about was instrumental in the development of modern dance?
Branden W. Joseph:  He has published books about Robert Rauschenberg, Andy Warhol, John Cage, Diane Arbus, Buckminster Fuller, Robert Morris, Pat O'Neill, and Anthony McCall. John Cage:  He was also instrumental in the development of modern dance, mostly through his association with choreographer Merce Cunningham, who was also Cage's romantic partner for most of their lives.
John Cage