 With the Beecham Opera Company he appeared, too, in Verdi's "Aida".He first sang at a Royal Philharmonic concert, again under Beecham's baton, in 1918.He later appeared as Boris, as Gurnemanz in Wagner's "Parsifal", Hagen in Wagner's "Götterdämmerung" and Baron Ochs in Richard Strauss's "Der Rosenkavalier" at the Royal Opera House, Covent Garden.