Scope and Content The Catholic choirmasters correspondence course consists of college-accredited lessons in sacred music and liturgy edited by Clifford A. Bennett and published by the Gregorian Institute of America, Toledo, Ohio, 1942-1945. The lessons may have been sent one by one, but have been gathered into a binder designed for them. Some lessons are missing. The course covers liturgy, liturgical aesthetics, Latin pronunciation, children's and boys' choirs, male choir training, polyphony, Gregorian chant,...