Candide (1956) is an operetta with music composed by Leonard Bernstein, based on the novella of the same name by Voltaire. The original libretto was written by Lillian Hellman, but since 1974, has been generally performed with a book by Hugh Wheeler, which is more faithful to Voltaire's novel. The primary lyricist was Richard Wilbur. Other contributors to the text were John Latouche, Dorothy Parker, Lillian Hellman, Stephen Sondheim, and Leonard Bernstein. Hershy Kay, John Mauceri, and Maurice Peress contributed orchestrations.