the New York Metropolitan Opera. In July 1999, Crider participated in a new production of Un ballo in maschera at the Opera House in Zurich under the baton of Christoph von Dohnanyi. In November of the same year, she sang Aida at the Teatro Comunale Florence. In the following two months she performed Odabella in a new production of Attila in Geneva and in February and March she returned to the Metropolitan Opera in New York for Madama Butterfly, followed by Amelia in Un ballo in maschera at the Deutsche Oper Berlin and a new production of Aida for her debut in Amsterdam under the musical direction of Riccardo Chailly. She closed this season with a new production of Aida at the opera festival in Macerata in July 2000. 2000–2002 Crider opened the season 2000/2001 in October with Il trovatore at the Opera House in Zurich. In December 2000, she made her Teatro Real debut in Madrid, where she sang Leonora in a new production of Verdi's Il trovatore under the musical direction of Garcia Navarro. Between January and April 2001, Crider returned to the Metropolitan Opera in New York as Amelia in Un ballo in maschera, followed by performances of the same role at the Vienna State Opera, where she also performed the role of Leonora in Il trovatore. In June 2001, she sang Aida at the San Francisco Opera House, where she was given the San Francisco Opera Award of Merit. In the summer of 2001, she debuted in Cagliari in a new production of Aida. In 2001/2002, other new productions and house debuts took place in Oviedo as Elvira in Ernani, and as Aida in Genoa and Catania, after which she returned to the Arena di Verona for the same role. Her season highlight was her critically acclaimed role debut as Norma at the Vlaamse Opera in Antwerp. During the season 2002/2003, Crider was first heard as Aida at the Metropolitan Opera in New York, followed by a highly successful house and role debut as Santuzza in a new production of Cavalleria rusticana in Trieste. 2003 In October 2003, Crider made her role debut as Tosca under the musical direction of Nello Santi at the Zurich Opera, followed by appearances as Norma in the Aalto Theatre in Essen. In January 2004 she returned to Zurich for more performances of Tosca, then moved on to the Bavarian State