Sophie Sollberger, Flute Title: Concert of Contemporary Music for Piano and Flute Entered from booking ledger and New York Times concert listing and review. "Opera and Concert Programs." New York Times (1923-), Nov 08 1964, p. 1. ProQuest. Web. 29 Jan. 2024. Strongin, Theodore. "SOPHIE SOLLBERGER PLAYS FLUTE WORKS." New York Times (1923-), Nov 10 1964, p. 57. ProQuest. Web. 29 Jan. 2024. solo recital 1964-11-09T20:30:00