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 composers discovered that they were both engaged in writing operas based on Murger's work. Leoncavallo had started his work first, and he and his music publisher claimed to have "priority" on the subject (although Murger's work was in the public domain). Puccini responded that he started his own work without having any knowledge of Leoncavallo's project, and wrote: "Let him compose. I will compose. The audience will decide." Puccini's opera premiered a year before that of Leoncavallo, and has been a perennial audience favorite, while Leoncavallo's version of the story was quick to fade into obscurity. Puccini's next work after