1900 operas

Tosca is an opera in three acts by Giacomo Puccini to an Italian libretto by Luigi Illica and Giuseppe Giacosa. It premiered at the Teatro Costanzi in Rome on 14 January 1900. The work, based on Victorien Sardou's 1887 French-language dramatic play, La Tosca, is a melodramatic piece set in Rome in June 1800, with the Kingdom of Naples's control of Rome threatened by Napoleon's invasion of Italy. It contains depictions of torture, murder, and suicide, as well as some of Puccini's best-known lyrical arias.

opera by Nikolai Rimsky-Korsakov

opera by Gustave Charpentier

thumb|Cover of piano score, 1919|alt=cover with ornamental lettering and image of young woman in early 20th century evening costume, with elaborately feathered hat Zazà () is an opera by Ruggero Leoncavallo, with a libretto by the composer, which draws on the same material as the French play Zaza (1898). The story concerns the French music hall singer, Zazà, and her affair and subsequent decision to leave her lover, Milio, when she discovers that he is married. The music is influenced by the French music halls where Leoncavallo had spent his early years as a composer.

tragedie lyrique composed by Gabriel Fauré

opera by Alexander von Zemlinsky

opera by Camille Erlanger