Sensation is responsible for much of the confusion in teaching, because teachers try to induce correct sensation in the pupil through imagination, imitation, or suggestion, in order to get the correct tone, instead of asking the pupil to”do” something to cause correct action which produces correct tone, and which in turn will caise the correct sensation. That is, sensation is an effect and not a clause of tone. Correct sensation may be a guide after it has once been experienced by correct singing; it cannot be obtained except by correct singing. We may ask a man who has never eaten an olive what an olive tastes like, or what is the real “taste sensation” of eating an olive. He will promptly voice his ignorance, and say, “Let me eat an olive and I will tell you.” The sensation then becomes a guide for future eating.

Witherspoon, Herbert. “Singing.” New York: G Schirmer (1925).