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 replaced by someone who will reciprocate. Shakespeare's procreation sonnets describe another young man who, like Romeo, is having trouble creating offspring and who may be seen as being a homosexual. Goldberg believes that Shakespeare may have used Rosaline as a way to express homosexual problems of procreation in an acceptable way. In this view, when Juliet says "...that which we call a rose, by any other name would smell as sweet", she may be raising the question of whether there is any difference between the beauty of a man and the beauty of a woman. The balcony scene was introduced