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 critics as to the artistic value of his work has always been divided. Grove Music Online described Puccini's strengths as a composer as follows: Puccini succeeded in mastering the orchestra as no other Italian had done before him, creating new forms by manipulating structures inherited from the great Italian tradition, loading them with bold harmonic progressions which had little or nothing to do with what was happening then in Italy, though they were in step with the work of French, Austrian and German colleagues. In his work on Puccini, Julian Budden describes Puccini as a gifted and original composer, noting