Giacomo Meyerbeer in the context of "Robert the Devil (Gilbert)"

Wilhelm Richard Wagner (/ˈvɑːɡnər/ VAHG-nər; German: [ˈvɪlˌhɛlm ˈʁɪçaʁt ˈvaːɡnɐ] ; 22 May 1813 – 13 February 1883) was a German composer, theatre director, essayist, and conductor, best known for his operas—although his mature works are often referred to as music dramas. Unlike most composers, Wagner wrote both the libretti and the music for all of his stage works. He first achieved recognition with works in the Romantic tradition of Carl Maria von Weber and Giacomo Meyerbeer, but revolutionised the genre through his concept of the Gesamtkunstwerk ("total work of art"), which sought to unite poetic, musical, visual, and dramatic elements. In this approach, the drama unfolds as a continuously sung narrative, with the music evolving organically from the text rather than alternating between arias and recitatives. Wagner outlined these ideas in a series of essays published between 1849 and 1852, most fully realising them in the first half of his four-opera cycle Der Ring des Nibelungen (The Ring of the Nibelung).

Wagner's compositions, particularly in his later period, have complex textures, rich harmonies and orchestration, and elaborate leitmotifs—musical phrases associated with individual characters, places, ideas, or plot elements. His advances in musical language, such as extreme chromaticism and quickly shifting tonal centres, greatly influenced the development of classical music; his Tristan und Isolde is regarded as an important precursor to modernist music. Later in life, he softened his ideological stance against traditional operatic forms (e.g., arias, ensembles and choruses), reintroducing them into his last few stage works, including Die Meistersinger von Nürnberg (The Mastersingers of Nuremberg) and Parsifal.

Grand opera is a genre of 19th-century opera generally in four or five acts, characterized by large-scale casts and orchestras. The original productions consisted of spectacular design and stage effects with plots normally based on or around dramatic historic events. The term is particularly applied (sometimes specifically used in its French-language equivalent grand opéra, pronounced [ɡʁɑ̃t‿ɔpeʁa]) to certain productions of the Paris Opéra from the late 1820s to around 1860; 'grand opéra' has sometimes been used to denote the Paris Opéra itself.

The term 'grand opera' is also used in a broader application in respect of contemporary or later works of similar monumental proportions from France, Germany, Italy, and other countries.

French opera is both the art of opera in France and opera in the French language. It is one of Europe's most important operatic traditions, containing works by composers of the stature of Rameau, Berlioz, Gounod, Bizet, Massenet, Debussy, Ravel, Poulenc and Messiaen. Many foreign-born composers have played a part in the French tradition, including Lully, Gluck, Salieri, Cherubini, Spontini, Meyerbeer, Rossini, Donizetti, Verdi and Offenbach.

French opera began at the court of Louis XIV with Jean-Baptiste Lully's Cadmus et Hermione (1673), although there had been various experiments with the form before that, most notably Pomone by Robert Cambert. Lully and his librettist Quinault created tragédie en musique, a form in which dance music and choral writing were particularly prominent. Lully's most important successor was Rameau. After Rameau's death, Christoph Willibald Gluck was persuaded to produce six operas for the Paris Opera in the 1770s. They show the influence of Rameau, but simplified and with greater focus on the drama. At the same time, by the middle of the 18th century another genre was gaining popularity in France: opéra comique, in which arias alternated with spoken dialogue. By the 1820s, Gluckian influence in France had given way to a taste for the operas of Rossini. Rossini's Guillaume Tell helped found the new genre of Grand opera, a form whose most famous exponent was Giacomo Meyerbeer. Lighter opéra comique also enjoyed tremendous success in the hands of Boieldieu, Auber, Hérold and Adam. In this climate, the operas of Hector Berlioz struggled to gain a hearing. Berlioz's epic masterpiece Les Troyens, the culmination of the Gluckian tradition, was not given a full performance for almost a hundred years after it was written.

Daniel-François-Esprit Auber (French: [danjɛl fʁɑ̃swa ɛspʁi obɛːʁ]; 29 January 1782 – 12 May 1871) was a French composer and director of the Paris Conservatoire.

Born into an artistic family, Auber was at first an amateur composer before he took up writing operas professionally when the family's fortunes failed in 1820. He soon established a professional partnership with the librettist Eugène Scribe that lasted for 41 years and produced 39 operas, most of them commercial and critical successes. He is mostly associated with opéra-comique and composed 35 works in that genre. With Scribe he wrote the first French grand opera, La Muette de Portici (The Dumb Woman of Portici) in 1828, which paved the way for the large-scale works of Giacomo Meyerbeer.

Robert le diable (Robert the Devil) is an opera in five acts composed by Giacomo Meyerbeer between 1827 and 1831, to a libretto written in French by Eugène Scribe and Germain Delavigne. Robert le diable is regarded as one of the first grand operas at the Paris Opéra. It has only a superficial connection to the medieval legend of Robert the Devil.

The opera was immediately successful from its first night on 21 November 1831 at the Opéra; the dramatic music, harmony and orchestration, its melodramatic plot, its star singers and its sensational stage effects compelled Frédéric Chopin, who was in the audience, to say, "If ever magnificence was seen in the theatre, I doubt that it reached the level of splendour shown in Robert...It is a masterpiece...Meyerbeer has made himself immortal". Robert initiated the European fame of its composer, consolidated the fame of its librettist Scribe, and launched the reputation of the new director of the Opéra, Louis-Désiré Véron, as a purveyor of a new genre of opera. It also had influence on development of the ballet, and was frequently mentioned and discussed in contemporary French literature.

Il crociato in Egitto (The Crusader in Egypt) is an opera in two acts by Giacomo Meyerbeer, with a libretto by Gaetano Rossi. It was first performed at La Fenice theatre, Venice on 7 March 1824. The part of Armando was sung by the famous castrato, Giovanni Battista Velluti; the opera was probably the last to feature a leading role written for a castrato. It is the last of Meyerbeer's series of operas in Italian, and became the foundation of the composer's international success.

Les Huguenots (French pronunciation: [le ˈyg(ə)no]) is an opera by Giacomo Meyerbeer and is one of the most popular and spectacular examples of grand opera. In five acts, to a libretto by Eugène Scribe and Émile Deschamps, it premiered in Paris on 29 February 1836.