This is an easy exercise from physical therapy that opens and lifts the ribcage and frees up the diaphragm. I am so excited about it that I am having all my students try it.
Singing is, in fact, delaying exhalation. Part of the way singers and actors gain more breath control is by training the body to remain in the position of inhalation longer than usual for everyday speech. When we inhale, the belly expands first, and then the base of the ribcage widens 360 degrees as we take more air in. For singing or extended speech one must learn to Read more