Giacomo Puccini remained popular. "Turandot", Puccini's final opera, was left unfinished, and the last two scenes were completed by Franco Alfano based on the composer's sketches. The libretto for "Turandot" was based on a play of the same name by Carlo Gozzi. The music of the opera is heavily inflected with pentatonic motifs, intended to produce an Asiatic flavor to the music. Unlike "La fanciulla", "Turandot" contains a number of memorable stand-alone arias, among them "Nessun dorma". The libretto of "Edgar" was a significant factor in the failure of that opera. Thereafter, especially throughout his middle and late career, Puccini was extremely
Giacomo Puccini selective, and at times indecisive, in his choice of subject matter for new works. Puccini was deeply involved in the process of writing the libretto itself, requiring many iterative revisions of his libretti in terms of both structure and text. Puccini's relationships with his librettists were at times very difficult. His publisher, Casa Ricordi, was frequently required to mediate disputes and impasses between them. Puccini explored many possible subjects that he ultimately rejected only after a significant amount of effort—such as the creation of a libretto—had been put into them. Among the subjects that Puccini seriously considered, but abandoned, were: