The New Amsterdam Ensemble Entered from booking ledger and New York Times concert listing and review. "Who Makes Music." New York Times (1923-), 29 Mar. 1970, p. 94. ProQuest. Web. 28 July 2025. "FUN AND STYLE MARK ENSEMBLE PROGRAM." New York Times (1923-), 31 Mar. 1970, p. 35. ProQuest. Web. 28 July 2025. chamber orchestra performance 1970-03-30T20:15:00