She was generally an advocate of a naturalistic style of singing: she called for a fairly instinctive method of breathing and argued against the "smiling" mouth position that many teachers of her day preferred. She was particularly concerned with vocal registration, calling it "the Alpha and Omega of the formation and development of the female voice, the touchstone of all singing methods, old and new." She also repeatedly expressed disdain for the teachers of her day who offered methods that they asserted would fully develop the voice in only a year or two. Instead, she felt that vocal training was best approached at a slow and deliberate pace.