Vienna Choir Boys Entered from booking ledger and New York Times concert listing and review. The program included other works by Michael Haydn, Schumann, Distler, Ziehrer, Josef Strauss, and a group of folk songs. The review notes that it was a shortened version of Rossini's "Il signor Bruschino" that was performed. "Who Makes Music and Where." New York Times (1923-), 16 Mar. 1969, p. 1. ProQuest. Web. 8 May 2025. "VIENNA BOYS CHOIR SINGS AT CARNEGIE." New York Times (1923-), 17 Mar. 1969, p. 46. ProQuest. Web. 8 May 2025. choir performance 1969-03-16T15:00:00