Entered from program calendar and New York Times concert listing. "Concert And Opera Programs Of The Week." New York Times (1923-Current file): 1. Oct 24 1954. ProQuest. Web. 3 June 2015. Schonberg, Harold C. "Frey, Violinist, Heard." New York Times (1923-Current file): 37. Nov 01 1954. ProQuest. Web. 4 June 2015.