Melba was not known as a Wagner singer, although she occasionally sang Elsa in "Lohengrin" and Elisabeth in "Tannhäuser". She received a certain amount of praise in these roles, although Klein found her unsuited to them, and Bernard Shaw thought she sang with great skill but played artificially and without sensibility. In 1896 at the Metropolitan, she attempted the role of Brünnhilde in "Siegfried", in which she was not a success. Her most frequent role in that house was Marguerite in Gounod's "Faust", which she had studied under the supervision of the composer. She never essayed any of Mozart's operas, for which some thought her voice ideally suited. Her repertoire across her entire career amounted to no more than 25 roles, of which, "The Times" obituarist wrote, "only some 10 parts are those which will be remembered as her own."