 Upon the recommendation of Leonard Bernstein, Maestro Endo assumed directorship of the American Ballet Theatre Orchestra in March 1969.He enjoyed an illustrious career with the American Ballet Theatre, remaining for ten years, during which time he worked with many major dancers from around the world, most notably Margot Fonteyn and Rudolf Nureyev.He also led the western debut performances of both Mikhail Baryshnikov and Natalia Makarova.