Artists of Pennsylvania Ballet in Theme and Variations, choreography by George Balanchine © The George Balanchine Trust. | Photo: Paul Kolnik

Artists of Pennsylvania Ballet in Theme and Variations, choreography by George Balanchine © The George Balanchine Trust. | Photo: Alexander Iziliaev

Principal Dancers Julie Diana and Zachary Hench in Theme and Variations, choreography by George Balanchine © The George Balanchine Trust. | Photo: Alexander Iziliaev

Principal Dancers Julie Diana and Zachary Hench in Theme and Variations, choreography by George Balanchine © The George Balanchine Trust. | Photo: Alexander Iziliaev

Artists of Pennsylvania Ballet in Theme and Variations, choreography by George Balanchine © The George Balanchine Trust. | Photo: Alexander Iziliaev