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
Simonetta Puccini started in 1980, Simonetta was proven to be Antonio's daughter and was assigned one-third of her grandfather's (now greatly diminished) estate, which included his villa in Torre del Lago, and took his name. The remainder of the estate remained in possession of its original heirs, who were not related to the Puccini family. Another claimed heir, Nadia Manfredi, believed her father Antonio to be Puccini's illegitimate son, but her case was not proven, and was opposed by Simonetta. After taking ownership of the villa, she established a non-profit "Friends of the Homes of Giacomo Puccini" to restore and maintain it.