Donal McGraith, October 14, 2020 For a brief introduction to Intersystems, the avant-garde “arts collective and multimedia performance group” founded in 1967 see this: https://en.wikipedia.org/wiki/John_Mills-Cockell#Intersystems Michael Hayden went on to be quite a successful artist. I don't know what became of Dik Zander and Blake Parker. This Musicworks review of a boxed set of the … Continue reading Intersystems and Andy Warhol: Some comments on the nature of the 1960s and 70s avant-garde