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
Idloes Owen Wales Theatre, Cardiff. Owen as Musical Director conducted the first performance, "Cavalleria rusticana", which included the Welsh tenor Robert Tear who started his career as a schoolboy in this performance. In 1948 the Welsh National Opera became a limited company and established another centre in Swansea. In 1951 the company made its first tour of Wales. In January 1950 Idloes Owen invited an astute businessman Bill Smith a former secretary of the defunct Cardiff Grand Opera to be his partner to develop the potential of the new company. Smith immediately responded by booking the young Charles Mackerras as conductor to