Italian opera revisited, history was retold and imagination was stimulated. The strength of it fell into a more violent era for opera: verismo, with "Cavalleria rusticana" by Pietro Mascagni and "Pagliacci" by Ruggero Leoncavallo. Some of the greatest Italian operas of the 20th century were written by Giacomo Puccini (1858–1924). These include "Manon Lescaut", "La bohème", "Tosca", "Madama Butterfly", "La fanciulla del West", "La rondine" and "Turandot", the last two being left unfinished. In 1926 and in 2002 Franco Alfano and Luciano Berio respectively attempted a completion of "Turandot", and in 1994 Lorenzo Ferrero completed the orchestration of the third version of
Unfinished creative work missing music had to be provided by Franco Alfano for the premiere in 1926. Recently, Luciano Berio composed an alternative ending. Alban Berg had only finished the first two acts of his opera "Lulu" at the time of his death in 1935. Due to objections from his widow it was not until 1979 that a full version was performed, with music for the final act devised by Friedrich Cerha using Berg's sketches. Other musical works which are unfinished but performable, are simply given in their incomplete state. Schubert's symphony is the most famous, but Anton Bruckner's Ninth Symphony is performed