After conducting 70 rehearsals of his Tristan und Isolde in Vienna and still finding the singers wanting, Richard Wagner turned to Malvina and Ludwig Schnorr von Carolsfeld to create the roles.
Tras 70 ensaios do seu Tristan und Isolde en Viena e aínda procurando cantantes para realizala, Richard Wagner propúxolles os papeis principais a Malvina e Ludwig Schnorr von Carolsfeld.