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
La pietra del paragone La pietra del paragone La pietra del paragone (The Touchstone) is an opera, or melodramma giocoso, in two acts by Gioachino Rossini, to an original Italian libretto by Luigi Romanelli. "La pietra del paragone" was first performed at La Scala, Milan, on 26 September 1812. It was the composer's first commission from a major opera house and was an instant success, being performed 53 times during its first season. Napoleon's Viceroy in Milan, Eugène de Beauharnais, was so impressed by the opera that he wrote to the Minister of the Interior, "You will kindly arrange for Maestro Joachin Rossini to