. "choir performance" . "The Madison Madrigal Singers" . . . "1968-06-17T20:30:00"^^ . . "Entered from booking ledger and New York Times concert listing.\r\n\"Who Makes Music.\" New York Times (1923-), Jun 16 1968, p. 1. ProQuest. Web. 13 Jan. 2025." . . . . . . . . . .