Indiana University Chamber Singers Entered from booking ledger and New York Times concert listing and review. NEW YORK PREMIERE of Bernhard Heiden's IN MEMORIAM "Who Makes Music and Where." New York Times (1923-), 1965 May 09 1965/05/09/, p. 1. ProQuest. Web. 22 May 2024. Klein, Howard. "INDIANA SINGERS OFFER A CONCERT: UNIVERSITY'S CHAMBER GROUP AT CARNEGIE RECITAL HALL." New York Times (1923-), 1965 May 16 1965/05/16/, p. 84. ProQuest. Web. 30 May 2024. choir performance 1965-05-15T14:30:00