The Mannes School of Music, originally called the David Mannes Music School and later the Mannes Music School, Mannes College of Music, the Chatham Square Music School, and Mannes College: The New School for Music, is a music conservatory in The New School, a private research university in New York City. In the fall of 2015, Mannes moved from its previous location on Manhattan's Upper West Side to join the rest of the New School campus in Arnhold Hall at 55 W. 13th Street.