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In page Porgy (novel):

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The novel was adapted for a 1927 play of the same name by Heyward and his wife, playwright Dorothy Heyward. Even before completing the play, Heyward was in discussions with composer George Gershwin for an operatic version of his novel. This was produced in 1935 as Porgy and Bess (renamed to distinguish it from the play[citation needed]).