II. Much of the time spent in elaborate breathing
exercises (while excellent for the health and valuable
to the singer, in a way) do not produce the
results that are expected.
III. The singer's first studies should be with his brain
and ear, rather than through an attempt at
muscular control of the breathing muscles.
IV. Vocal resonance can be developed through a
proper understanding of tone color (vocal timbre),
so that uniformly excellent production of tones
will result.