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
Armida (Rossini) Armida (Rossini) Armida is an opera in three acts by Italian composer Gioachino Rossini to an Italian libretto ("dramma per musica") by Giovanni Schmidt, based on scenes from "Gerusalemme liberata" by Torquato Tasso. "Armida" was written to be performed at the Teatro di San Carlo, Naples, on 11 November 1817 to celebrate the opening of the rebuilt opera house, which had been destroyed by fire the previous year. Isabella Colbran sang the title role, which is one of the longest and most demanding that Rossini wrote, with difficult coloratura passages of every kind during the entire opera. The most notable