Heifetz-Piatigorsky Concert No conductor is listed in program for the chamber orchestra. The Handel-Halvorsen Passacaglia, performed as an encore, was played in memory of pianist Leopold Mannes, who died in the summer of 1964. NEW YORK PREMIERE of Miklos Rozsa's TEMA CON VARIAZIONI FOR VIOLIN, CELLO AND ORCHESTRA, OP. 29A "CONCERTS BY HEIFETZ AND PIATIGORSKY END." New York Times (1923-), Oct 02 1964, p. 33. ProQuest. Web. 8 Jan. 2024. chamber orchestra performance 1964-10-01T19:00:00