New York City Ballet

George Balanchine and Suzanne Farrell perform in ''Don Quixote'' in a promotional for Robert Tracy's book ''Balanchine's Ballerinas: Conversations With the Muses.''

Suzanne Farrell and Peter Martins of the New York City Ballet perform together in ''Ballerinas: Dances by Peter Martins,'' which was aired on PBS television as part of the Great Performances Dance in America series.

Edward Villella of the New York City Ballet performs with an unidentified partner in George Balanchine's ''Bugaku.''

Choreographer George Balanchine (center) works with his principal dancers Patricia McBride and Mikhail Barishnikov as they prepare to dance in ''Choreography by Balanchine, Part 3.''

Edward Villella of the New York City Ballet performs with Violette Verde in Lew Christensen's ballet ''Con Amore.''

Peter Martins of the New York City Ballet performs with ballerina Suzanne Farrell in Balanchine's ''Concerto Barocco.''

The New York City Ballet ensemble performs in Geroge Balanchine's ''Concert Barocco.''

The New York City Ballet ensemble performs in Geroge Balanchine's ''Concert Barocco.''

Ballerina Patricia McBride performs with Helgi Tomasson in George Balanchine and Alexandra Danilova's ballet ''Coppelia.''

Peter Martins of the New York City Ballet performs with the ensemble in ''Coppelia.''