Ability to sing and sustain the voice on an _ordinary_ breath.
6.

Ability to _quietly_ breathe as often as text and phrase permit.
7.

Ability to breathe so that the fullest inspiration _brings no fatigue_.
8.

Ability to so economize the breath that the _reserve is never exhausted_.
9.

The ability to breathe so naturally, so unobtrusively, that _neither breath nor lack of breath is ever suggested to the listener_--this is the very perfection of the art..