She was a soloist with the New York City Ballet, dancing under the direction of George Balanchine, Jerome Robbins, and Peter Martins, until she left the company in 1985.
Throughout her career, she performed in various Balanchine ballets including Agon, Le Tombeau de Couperin, Chaconne, Symphony in Three Movements, The Nutcracker, and Jewels.
[3] Frankfurt danced in ballets including Agon, Symphony in Three Movements, Chaconne, Le Tombeau de Couperin, and The Nutcracker.
[2] She was a founding member of the Lincoln Center Arts and Education program, through which she taught and gave lectures about dance in the New York City Public School System.
[10][11] During an interview with Psychology Tomorrow in 2012, Frankfurt alleged that she had experienced sexual misconduct at New York City Ballet by both Peter Martins and Balanchine.
"[12][8] In an interview with Salon Magazine, Frankfurt alleged that Martins pulled her "into his dressing room and exposed himself" during one of her performances.