She declares witheringly

“I do not approve of anything that tampers with natural dress size. Dress size is like a delicate exotic fruit; touch it and the bloom is gone. The whole theory of modern vocal pedagogy is radically unsound. Fortunately in England, at any rate, vocal pedagogy produces no effect whatsoever. If it did, it would prove a serious danger to the upper classes, and probably lead to acts of violence in Grosvenor Square.” [The Telegraph]