Morton Subotnick is one of the innovators of classical electronic music. His early work with Buchla synthesizers took him to the peak of the avant garde electronica world of the 60’s, while his later works have explored the ways in which live performers can interact with electronics.
His site provides a history of his composition, a discography, a calendar of perfomances, press notes, and program notes on many of his more recent works. The program notes provide insight on his approach to combining live performance and electronics.
Also check out the Synthtopia artist profile of Morton Subotnick.