section_path: Changing role of the orchestra
section_name: Changing role of the orchestra
paragraph_text: Changing role of the orchestra
  
  Before the 1700s, Italian operas used a small string orchestra, but it rarely played to accompany the singers. Opera solos during this period were accompanied by the basso continuo group, which consisted of the harpsichord, "plucked instruments" such as lute and a bass instrument. The string orchestra typically only played when the singer was not singing, such as during a singer's "...entrances and exits, between vocal numbers, for dancing". Another role for the orchestra during this period was playing an orchestral ritornello to mark the end of a singer's solo. During the early 1700s, some composers began to use the string orchestra to mark certain aria or recitatives "...as special"; by 1720, most arias were accompanied by an orchestra. Opera composers such as Domenico Sarro, Leonardo Vinci, Giambattista Pergolesi, Leonardo Leo, and Johann Adolph Hasse added new instruments to the opera orchestra and gave the instruments new roles. They added wind instruments to the strings and used orchestral instruments to play instrumental solos, as a way to mark certain arias as special.
  
  The orchestra has also provided an instrumental overture before the singers come onstage since the 1600s. Peri 's Euridice opens with a brief instrumental ritornello, and Monteverdi 's L'Orfeo (1607) opens with a toccata, in this case a fanfare for muted trumpets. The French overture as found in Jean-Baptiste Lully 's operas consist of a slow introduction in a marked "dotted rhythm", followed by a lively movement in fugato style. The overture was frequently followed by a series of dance tunes before the curtain rose. This overture style was also used in English opera, most notably in Henry Purcell 's Dido and Aeneas. Handel also uses the French overture form in some of his Italian operas such as Giulio Cesare.
  
  In Italy, a distinct form called "overture" arose in the 1680s, and became established particularly through the operas of Alessandro Scarlatti, and spread throughout Europe, supplanting the French form as the standard operatic overture by the mid-18th century. It uses three generally homophonic movements: fast–slow–fast. The opening movement was normally in duple metre and in a major key; the slow movement in earlier examples was short, and could be in a contrasting key; the concluding movement was dance-like, most often with rhythms of the gigue or minuet, and returned to the key of the opening section. As the form evolved, the first movement may incorporate fanfare-like elements and took on the pattern of so-called "sonatina form" (sonata form without a development section), and the slow section became more extended and lyrical.
  
  In Italian opera after about 1800, the "overture" became known as the sinfonia. Fisher also notes the term Sinfonia avanti l'opera (literally, the "symphony before the opera") was "an early term for a sinfonia used to begin an opera, that is, as an overture as opposed to one serving to begin a later section of the work". In 19th-century opera, in some operas, the overture, Vorspiel, Einleitung, Introduction, or whatever else it may be called, was the portion of the music which takes place before the curtain rises; a specific, rigid form was no longer required for the overture.
  
  The role of the orchestra in accompanying the singers changed over the 19th century, as the Classical style transitioned to the Romantic era. In general, orchestras got bigger, new instruments were added, such as additional percussion instruments (e.g., bass drum, cymbals, snare drum, etc.). The orchestration of orchestra parts also developed over the 19th century. In Wagnerian operas, the forefronting of the orchestra went beyond the overture. In Wagnerian operas such as the Ring Cycle, the orchestra often played the recurrent musical themes or leitmotifs, a role which gave a prominence to the orchestra which "...elevated its status to that of a prima donna ". Wagner's operas were scored with unprecedented scope and complexity, adding more brass instruments and huge ensemble sizes: indeed, his score to Das Rheingold calls for six harps. In Wagner and the work of subsequent composers, such as Benjamin Britten, the orchestra "often communicates facts about the story that exceed the levels of awareness of the characters therein. As a result, critics began to regard the orchestra as performing a role analogous to that of a literary narrator."
  
  As the role of the orchestra and other instrumental ensembles changed over the history of opera, so did the role of leading the musicians. In the Baroque era, the musicians were usually directed by the harpsichord player, although the French composer Lully is known to have conducted with a long staff. In the 1800s, during the Classical period, the first violinist, also known as the concertmaster, would lead the orchestra while sitting. Over time, some directors began to stand up and use hand and arm gestures to lead the performers. Eventually this role of music director became termed the conductor, and a podium was used to make it easier for all the musicians to see him or her. By the time Wagnerian operas were introduced, the complexity of the works and the huge orchestras used to play them gave the conductor an increasingly important role. Modern opera conductors have a challenging role: they have to direct both the orchestra in the orchestra pit and the singers on stage.