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
Rudy La Scala The album "Tú Como Yo" by Los Chamos was also produced by La Scala. In 1986, La Scala produced the best-selling Venezuelan album in history, "Amor a Millón", for the singer Karina. The album yielded two singles that reached the Top 20 in the "Billboard" Top Latin Songs chart, "Sé Como Duele" (#12), and "A Quién" (#19). La Scala was awarded with the Songwriter of the Year award for the single "Sé Como Duele". La Scala also wrote "Sin Pensarlo 2 Veces" for Guillermo Dávila and "Que Bello" for the singer Kiara. Both singles became successful, as did their duet