Verismo (music) of the poor, that had not generally been seen as a fit subject for literature. A short story by Verga called "Cavalleria rusticana" (), then developed into a play by the same author, became the source for what is usually considered to be the first "verismo" opera: "Cavalleria rusticana" by Mascagni, which premiered on 17 May 1890 at the Teatro Costanzi in Rome. Thus begun, the operatic genre of "verismo" produced a handful of notable works such as "Pagliacci", which premiered at Teatro Dal Verme in Milan on 21 May 1892, and Puccini's "Tosca" (premiering at the Teatro Costanzi in
Ildikó Komlósi Naxos at the Teatro alla Scala in Milan; Cavalleria Rusticana (Santuzza) and Carmen at the Arena in Verona; Aida at the Frankfurt Oper, at the Baths of Caracalla in Rome and at the Teatro alla Scala in Milan under the baton of Riccardo Chailly for the opening of the 2006–2007 season; Cavalleria Rusticana and Oedipus Rex (Jocasta) at the Teatro Regio in Turin; Verdi’s Requiem in Cagliari; Cavalleria Rusticana at the Deutsche Oper Berlin and in Naples; Bluebeard's Castle in Bilbao; Verdi’s Requiem with the London Philharmonic Orchestra and Vladimir Jurowski in London; Dvorak’s Requiem at the Gran Teatre del