Entered from booking ledger and New York Times concert listing and review. The program included additional unspecified selections, and the accompanist is not identified in either the listing or the review. "CONCERT AND OPERA PROGRAMS FOR THE WEEK: OPERA METROPOLITAN CONCERTS, RECITALS." New York Times (1923-Current file), Dec 02 1956, p. 1. ProQuest. Web. 20 Apr. 2021. "Peter Koniuch, Bass, in Recital." New York Times (1923-Current file), Dec 03 1956, p. 39. ProQuest. Web. 20 Apr. 2021.