David C. Taylor, The Psychology of Singing
“ To train a voice is in reality a very simple matter. Nothing is required of the student but straightforward singing. Provided the student's [Pg 358] daily practice of singing be guided by a naturally keen ear and a sound musical taste, the voice will steadily progress. Little need be said here about the technical demands made on the voice in modern music. The standards of vocal technique are well known to all vocal teachers, and indeed to musicians generally. Further, the scope of this work is limited to the basic principle of vocal technique,—correct tone-production. ”
