New York City Center of Music and Drama, New York City Ballet, George Balanchine, artistic director, Jerome Robbins, associate artistic director, Leon Barzin, musical director, Lincoln Kirstein, general director, Lew Christensen, administrative director. II. "Kaleidoscope," music by Kabalevsky, choreography by Ruthanna Boris, costumes by Alvin Colt, lighting by Jean Rosenthal, conductor: Leon Barzin.