Turandot Puccini. He left behind 36 pages of sketches on 23 sheets for the end of "Turandot". Some sketches were in the form of "piano-vocal" or "short score," including vocal lines with "two to four staves of accompaniment with occasional notes on orchestration." These sketches supplied music for some, but not all, of the final portion of the libretto. Puccini left instructions that Riccardo Zandonai should finish the opera. Puccini's son Tonio objected, and eventually Franco Alfano was chosen to flesh out the sketches after Vincenzo Tommasini (who had completed Boito's "Nerone" after the composer's death) and Pietro Mascagni were rejected.
Giacomo Puccini Vienna's Carltheater; however, the outbreak of World War I prevented the premiere from being given there. Moreover, the firm of Ricordi had declined the score of the opera – Giulio Ricordi's son Tito was then in charge and he described the opera as "bad Lehár". It was taken up by their rival, Lorenzo Sonzogno, who arranged the first performance in neutral Monaco. The composer continued to work at revising this, the least known of his mature operas, until his death. "La rondine" was initially conceived as an operetta, but Puccini eliminated spoken dialogue, rendering the work closer in form to