sentences:  1 and Michael Tippett's "A Child of Our Time".He served on the National Humanities Council from 1968 to 1974 and the Music Planning Section of the National Arts Endowment from 1977 to 1979.Following Gershkovitch's death in 1953, guest conductors lead the Portland Junior Symphony (now known as the Portland Youth Philharmonic) for its thirtieth season—one was Avshalomov.