Entered from booking ledger and New York Times concert listing and review. Neither the listing nor the review indicates which selections were performed on pipa and which on guqin. "CONCERT AND OPERA PROGRAMS." New York Times (1923-), Sep 20 1959, p. 1. ProQuest. Web. 12 Mar. 2022. Briggs, John. "RECITAL OFFERED BY LUI TSUN-YUEN: CHINESE WORKS ARE PLAYED ON LUTE-LIKE P'I P'A AND CH'IN, SIMILAR TO ZITHER." New York Times (1923-), Sep 22 1959, p. 45. ProQuest. Web. 12 Mar. 2022.