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

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

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

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

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

Principal Dancer Julie Diana in Serenade, choreography by George Balanchine © The George Balanchine Trust. | Photo: Alexander Iziliaev

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

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

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

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