Question: Bernardo de Muro debuted in performing in "Cavalleria rusticana" by the Italian composer who ushered in which movement?
Related documents: [0]  [DOC] Pietro Antonio Stefano Mascagni (] ; 7 December 1863 – 2 August 1945) was an Italian composer most noted for his operas. His 1890 masterpiece "Cavalleria Rusticana" caused one of the greatest sensations in opera history and single-handedly ushered in the "Verismo" movement in Italian dramatic music. While it was often held that Mascagni, like Leoncavallo, was a "one-opera man" who could never repeat his first success, "L'amico Fritz" and "Iris" have remained in the repertoire in Europe (especially Italy) since their premieres. Mascagni said that at one point, "Iris" was performed in Italy more often than "Cavalleria" (cf. Stivender). [END] 
[1]  [DOC] Bernardino de Muro was born on November 3, 1881, in Tempio Pausania, Sardinia, to Antonio Maria and Jeanne-Marie Demuro. His father was a small landowner. Bernardo’s formal education ceased at primary school. Initially self-taught, he began singing in a café in Tempio. Moving to Rome, he participated in a competition for admission to the Conservatory of St. Cecilia in 1903. He studied under A. Sbriscia and Alfredo Martino. His operatic debut was on May 12, 1910, at the Teatro Costanzi in Rome, performing in "Cavalleria rusticana" by Mascagni. He received flattering reviews for this performance. In the next few years he performed in "Madama Butterfly", "L'Africaine", "Carmen", and further performances of "Cavalleria rusticana". Although he was long a star at La Scala, he was largely unknown to American audiences until he began to tour there. His continued career carried him to such places as the Solis in Montevideo, Uruguay in 1916, the Dal Verme in Milan (performing "Mefistofele"), the Hippodrome, St. Petersburg, Florida, in 1927, and The Dell Ofrecie Grand Opera Company of New York (performing "Aida"). [END] 
Answer: 
Verismo
Verismo