 About halfway through his courses, however, realizing that he was studying out of personal interest and not for practical reasons, he shifted again towards music, and studied with John Weinzweig and Lothar Klein at the University of Toronto Faculty of Music.Mozetich became active in the avant-garde music circles.He co-founded Arraymusic with John Fodi, Clifford Ford, Gary Hayes, Michael Parker, Alex Pauk and Robert Bauer, and served as artistic director.