Returning to the classical concert venue, Serry served as the lead concert accordionist in performances of the "New Ballet" staged to the music of Tchaikovsky (the Orchestral Suite No. 2 (Tchaikovsky)) at the New York State Theater (1969). The production was performed as part of the 20th anniversary season of the New York City Ballet. The performances included the choreography of Jacques d'Amboise in the premier of his "Tchaikovsky Suite" and the New York City Ballet Orchestra directed by Robert Irving. Principal dancers in the corps de ballet included Francisco Moncion, Gerard Ebitz, and Nina Fedorova.