Operas set in the 19th century

opera by Giuseppe Verdi

Pagliacci (; literal translation, 'Clowns') is an Italian opera in a prologue and two acts, with music and libretto by Ruggero Leoncavallo. The opera tells the tale of Canio, actor and leader of a commedia dell'arte theatrical company, who murders his wife Nedda and her lover Silvio on stage during a performance. Canio portrays on stage the character of Pagliaccio (Pierrot), while Nedda portays Pierrot's unfaithful lover Columbina.

opera by Dmity Shostakovich

opera by Gioachino Rossini

opera by Sergei Prokofiev

operetta by Franz Lehár

operetta

opera by Nikolai Rimsky-Korsakov

thumb|Carl Millöcker (1883) Gasparone is an operetta in three acts by Carl Millöcker to a German libretto by Friedrich Zell and Richard Genée. The libretto was later revised by and . An amusing feature of the work is that the title character never appears and acts as a scapegoat upon which all the misdeeds in Syracuse, Sicily, can be blamed.

thumb|The cover of the Treemonisha score, published in 1911

opera by Leoš Janáček

thumb|Poster Lodoletta is a dramma lirico or lyric opera in three acts by Pietro Mascagni. The libretto is by Giovacchino Forzano, and is based on the novel Two Little Wooden Shoes by Ouida (pseudonym of Marie Louise de la Ramée).

opera by Frederick Delius

opera by Wilhelm Kienzl

1947 opera by Virgil Thomson

chamber opera by Philip Glass

Risorgimento! is an opera in one act by Lorenzo Ferrero set to an Italian-language libretto by Dario Oliveri, based on a scenario by the composer. It was completed in 2010 and first performed at the Teatro Comunale di Modena on 26 March 2011.

opera by Daniel François Esprit Auber

opera by Antonio Smareglia

opera by Ignaz Brüll