When Martha Mödl died at the age of 89, she had still not retired. The mezzo soprano turned dramatic soprano turned mezzo once more was a stage creature of rare magnetism. After a late start in music, she sang principal roles in the mezzo repertory during most of her thirties, but made a leap into the front rank of singing actresses with her engagement at the Bayreuth Festival, beginning with its re-opening in 1951. She alternated the three Brünnhildes and Isolde with Astrid Varnay and created a complex, tortured Kundry in Wieland Wagner's revolutionary production of Parsifal ...