Romeo and Juliet sometimes been judged unfavourably because of its perceived liberties with Shakespeare; however, Bellini and his librettist, Felice Romani, worked from Italian sources—principally Romani's libretto for "Giulietta e Romeo" by Nicola Vaccai—rather than directly adapting Shakespeare's play. Among later operas, there is Heinrich Sutermeister's 1940 work "Romeo und Julia". "Roméo et Juliette" by Berlioz is a "symphonie dramatique", a large-scale work in three parts for mixed voices, chorus, and orchestra, which premiered in 1839. Tchaikovsky's "Romeo and Juliet" Fantasy-Overture (1869, revised 1870 and 1880) is a 15-minute symphonic poem, containing the famous melody known as the "love theme". Tchaikovsky's device of
Romeo and Juliet executed, and Friar Laurence offers Juliet a plan to reunite her with Romeo, the audience can still hope that all will end well. They are in a "breathless state of suspense" by the opening of the last scene in the tomb: If Romeo is delayed long enough for the Friar to arrive, he and Juliet may yet be saved. These shifts from hope to despair, reprieve, and new hope serve to emphasise the tragedy when the final hope fails and both the lovers die at the end. Shakespeare also uses sub-plots to offer a clearer view of the actions of