Entered from booking ledger and New York Times concert listing and review. Note that although the listing and review identify this performance of Nicolas Flagello's Burlesca, Op. 33, as the New York Premiere, a Times concert listing and review for a recital on September 29, 1961 in Carnegie Recital Halll identify that performance, given by flutist Gary Sigurdson and guitarist Julio Prol, as the world premiere. NEW YORK PREMIERE of Petr Eben's ORDO MODALIS "Who Makes Music and Where: METROPOLITAN OPERA." New York Times (1923-), Feb 01 1970, p. 1. ProQuest. Web. 13 Jan. 2023. Strongin, Theodore. "Flutist and Harpist Join in Recital Hall Program." New York Times (1923-), Feb 05 1970, p. 34. ProQuest. Web. 13 Jan. 2023. "MUSIC PROGRAMS." New York Times (1923-), Sep 24 1961, p. 1. ProQuest. Web. 9 Jan. 2023. "FLUTE RECITAL GIVEN BY GARY SIGURDSON." New York Times (1923-), Sep 30 1961, p. 16. ProQuest. Web. 13 Jan. 2022.
Edith Kongshoj, Flute, and Lise Nadeau, Harp