Vaness was forced to withdraw from Dukas' Ariane et Barbe-bleue at New York City Opera last fall because of injuries sustained in a car accident last summer. She was scheduled to sing the demanding role of Ariane.
Recent credits for the California-born singer include the title role in Tosca at the Metropolitan Opera opposite Luciano Pavarotti in spring 2004, and performances at the San Francisco, Vienna State Opera, and Hamburg State Opera in the same role.