. . "Indiana University Chamber Singers" . . "choir performance" . . "Entered from booking ledger and New York Times concert listing and review.\r\n\"Who Makes Music and Where.\" New York Times (1923-), 27 Apr. 1969, p. 1. ProQuest. Web. 19 May 2025.\r\nDavis, Peter G. \"Indian Singers Span 4 Centuries in Music.\" New York Times (1923-), 28 Apr. 1969, p. 34. ProQuest. Web. 19 May 2025." . "1969-04-27T20:30:00"^^ . . . . . . . .