New York Theatre Ballet New York Theatre Ballet New York Theatre Ballet or NYTB was founded in 1978 by Diana Byer, who became its artistic director. Dedicated to the principles of the Cecchetti-Diaghilev tradition, the company both reprises classic masterworks and produces original ballets. New York Theatre Ballet has performed works by choreographers including Richard Alston, Frederick Ashton, George Balanchine, Gemma Bond, August Bournonville, Michel Fokine, David Gordon, José Limón, John Taras, and Antony Tudor. The company tours its family and adult programs both nationally and abroad, and has become the most widely seen chamber ballet company in the United States. The British ballet
New York City Ballet also occasionally accompanies other dance companies when they visit The David H. Koch Theater from other cities. These engagements have included the Australian Ballet in the spring of 2012, and the San Francisco Ballet in the fall of 2013. Over the decades the NYCB Orchestra has welcomed other noted orchestral musicians to collaborate on special performances. Included among this group was John Serry Sr., who served as the lead orchestral accordionist during the NYCB's 20th anniversary season in the premiere of Jacques d' Amboise's "Tchaikovsky Suite" (1969). Andrew Litton was appointed to the position on December 16, 2014, and started