 The plan was quickly realized, and the newly formed Boston Opera Company under Russell's leadership gave their first performance for the opening of the Boston Opera House on November 8, 1909, with a performance of "La Gioconda" with Nordica in the title role.Nielsen and Nordica were the company's two leading sopranos during its six years of operation from 1909-1915.She also debuted at The Metropolitan Opera and Opéra de Montréal.