Fanny Eckerlin has speculated on this last point that Eckerlin may have been chafing at the restrictions of her contract, as by this time she had already appeared with some success at La Scala, where she had debuted in "La gazza ladra" during the 1817–18 season. During Eckerlin's career she spent several seasons at the Teatro Italiano in Barcelona, where a claque in her honor was created, and where she won many favorable notices for her work before accepting a contract with the Salle Favart in Paris. She was a noted interpreter of Rossini, and during his tenure at the helm of
Aureliano in Palmira Rossini in "Elisabetta, regina d'Inghilterra" and in "The Barber of Seville". It premiered at La Scala in Milan on 26 December 1813. 19th century "Aureliano in Palmira" was Rossini's second commission from La Scala. It opened the theatre's Carnival season with the famed castrato, Giovanni Battista Velluti as Arsace. It was the only role that Rossini wrote for the castrato voice. Rossini had originally written the role of Aureliano for Giovanni David, one of the most renowned tenors of the day. However, throat problems during rehearsals led David to withdraw from the production, and Luigi Mari took his place. The