The New York String Orchestra’s annual Christmas Eve concert has thrilled New York City audiences for more than 50 years. The excitement runs high in this all-Mozart program, featuring Jonathan Biss in one of the composer’s favorite works, the technically daring Piano Concerto No. 9. The joyous evening of music opens with the exuberant Overture to The Impresario and culminates with the bustling energy of the rapturous Symphony No. 40.