 Her stage debut, in her native city, came in 1821, when she performed in Mozart's "Così fan tutte", a performance for which Franz Schubert had briefly served as her répétiteur.Three years later she sang in the first performances of Ludwig van Beethoven's Ninth Symphony and "Missa Solemnis".She performed a great deal in Italy, principally in Naples after 1825 when she became engaged to the impresario of the Teatro San Carlo, Domenico Barbaia.