Entered from booking ledger and New York Times concert listing. The listing indicates "assisting artists and orchestra of 10 flutists, Gerardo Levy, conductor." Other than Gerardo Levy, the assisting artists are not identified, and the correct program order is uncertain. NEW YORK PREMIERE of Theobald Boehm's VARIATIONS SUR UN AIR ALLEMAND, OP. 22 “Theater: Arts and Leisure Guide.” New York Times [New York, N.Y., United States], 5 Jan. 1975, p. D3. Arts & Leisure.