Rolla remained at La Scala until 1833. There he was usually identified as the "Primo violino, Capo d'orchestra" being so responsible for leading the orchestra. He conducted the first Milanese performances of Mozart's "Don Giovanni", "Così fan tutte", "La clemenza di Tito" and "The Marriage of Figaro" and Beethoven's first symphonies. During this period he also conducted about eighteen operas of the then most loved opera composer, Gioachino Rossini, as well as operas by Gaetano Donizetti and Bellini, whom he got to know personally. He conducted the premiere of "Norma", for example.