New York City Ballet

Edward Villella of the New York City Ballet performs with Violette Verdy in ''La Source.''

Violette Verdy of the New York City Ballet performs with Nicholas Magallanes in George Balanchine's ''Liebeslieder Waltzer.''

Violette Verdy (center) of the New York City Ballet performs with Conrad Ludlow (left) and Nicholas Magallanes (right) in George Balanchine's ''Liebeslieder Waltzer.''

Nicholas Magallanes of the New York City Ballet performs with an unidentified dance in George Balanchine's ''Liebeslieder Walzer.''

Violette Verdy and Arthur Mitchell, along with the New York City Ballet ensemble, perform in Brigit Cullberg's ''Medea.''

Violette Verdy and Arthur Mitchell, along with the New York City Ballet ensemble, perform in Brigit Cullberg's ''Medea.''

Melissa Hayden and Edward Villella, both of the New York City Ballet, perform together in George Balanchine's ballet ''A Midsummer Night's Dream.''

Melissa Hayden and an unidentified dancer, both of the New York City Ballet, perform together in George Balanchine's ballet ''A Midsummer Night's Dream.''

Melissa Hayden and Edward Villella, both of the New York City Ballet, perform together with the ensemble in George Balanchine's ballet ''A Midsummer Night's Dream.''

Two photographs on one sheet: Balerina Kay Mazzo of the New York City Ballet performs in George Balanchine's ''Nutcracker'' and informal portrait of Mazzo backstage at the same performance.