John Eaton, an avant-garde composer of operas both grandiose and chamber-size and an early proponent of synthesizer music, died on Dec. 2 in Manhattan. He was 80. NYTimes Obit
John Charles Eaton (March 30, 1935 – December 2, 2015) was an American composer (Anon. n.d.(a); Morgan 2001), recipient of the Prix de Rome, Guggenheim Fellow (Morgan 2001), MacArthur Fellow and professor emeritus of composition at the University of Chicago (Anon. 2008). WIKIPEDIA
VIDEO: The Greeks: Ancient and Modern, part I by John Eaton, composer; Marcy Richardson, soprano; with two pianos tuned quarter tone apart.