Whatever the cause may have been, her singing career was effectively over by age 40, and even at the time of her death at age 53, according to Walter Legge, "she ought still to have been singing magnificently".
Nech už je ale príčina akákoľvek, jej spevácka kariéra sa zavŕšila vo veku 40 rokov, hoci aj v čase svojej smrti, vo veku 53 rokov "by stále spievala nádherne" – ako povedal Walter Legge.