Anton Haizinger heard Haizinger sing in concerts, and offered him an engagement at the theatre; Haizinger gave up teaching. Haizinger's first roles at Theater an der Wien, in 1821, were in two operas by Rossini, as Gianetto in "La gazza ladra" and Lindoro in "L'italiana in Algeri". He soon became well-known in Vienna. The role of Adolar in Weber's opera "Euryanthe", premiered in 1823 at the Theater am Kärntnertor, was created for him, and he was a soloist in the premiere in 1824 of Beethoven's Ninth Symphony at the same theatre. He continued studies with Antonio Salieri. At this time, Italian opera
Philadelphia La Scala Opera Company Philadelphia La Scala Opera Company The Philadelphia La Scala Opera Company (defunct) was an American opera company located in Philadelphia, Pennsylvania that was actively performing at the Academy of Music between 1925 and 1954. In 1955 the company merged with the Philadelphia Civic Grand Opera Company to form the Philadelphia Grand Opera Company. Founded under the name La Scala Grand Opera Company, the company's first production was of Giuseppe Verdi's "La traviata" on May 4, 1925 with Josephine Lucchese as Violetta, Dimitri Onofrei as Alfredo, Elia Palma as Giorgio, and Fulgenzio Guerrieri conducting. The company presented fifteen more operas during