Entered from booking ledger and New York Times concert listing and review. An unidentified pianist accompanied Angela Giordano on three unnamed arias. Merrill, Helen. "CONCERT AND OPERA PROGRAMS FOR THE WEEK." New York Times (1923-Current file), Apr 15 1956, p. 124. ProQuest. Web. 10 Mar. 2021. "Mandolin-Guitar Program." New York Times (1923-Current file), Apr 16 1956, p. 31. ProQuest. Web. 10 Mar. 2021.