American director and administrator, son of the critic Max Graf; became
a naturalized American citizen. He worked with the Philadelphia Opera
and the Metropolitan in the 1930s; taught in the opera department at
the Curtis Institute, Philadelphia, in the 1950s; and was director of
the Zürich Opera and the Grand Théâtre, Geneva, in the 1960s. Author of
three books: The Opera and its Future in America (1941), Opera for the
People (1951), and Producing Opera for America (1961).