Classical music written in collaboration would include: There are also instances where a work was left unfinished at the composer's death, and was completed by another composer. In such cases, the later composer generally strives to ensure the finished product is as close as possible to the original composer's intentions, as revealed by their notes, rough drafts, or other evidence. One of the best known examples is the completion by Franco Alfano of Giacomo Puccini's opera "Turandot". There may also be a case for describing Sir Edward Elgar's Symphony No. 3 as a work by both Elgar and Anthony Payne. However, these types of works
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