I am continuing the post “Respirazione costo-diaframmatica: supporting the voice” from yesterday.
So, science tells us that in order to sing high notes we need increased air pressure. Then how does engaging the diaphragm in the fight supply us with that air pressure? By engaging the diaphragm and the support muscles – one fighting to stay down, and the others fighting to push it back up, you increases the potential breath pressure. It’s like a rubber band being pulled. When you let go, it spring into action. The increased PBP is regulated by the voice; and when you are on the high note the diaphragm retreats in microspurts that equate to stronger pressure because the PBP was stronger due to the increased fight between diaphragm and support musculature. Had there not been as big of fight, there would not be as big of potential breath pressure; and consequently not as big of a real breath pressure. But it is the mind that does this through the voice.
Proof of this is when you press down really hard with the diaphragm and engage the support muscles with closed cords. I invite you to do this but then keep the cords open, not letting any air in or out. See how you can have the fight in the body with no air movement through the cords? Why no air movement? Because all that physical pressure is only potential breath pressure. Your mind is keeping the diaphragm in check so that it does not retreat. But as soon as you start singing, the mind will tell the diaphragm to retreat. When you sing well, the voice (mind) will tell the diaphragm how much to retreat.
The same happens in singing piano. The fight increases between diaphragm and support muscles. You support more, but this does not equate to increased pressure in the breath. In fact, it’s a scientific fact that piano singing requires less breath pressure than normal singing. Then why do we engage that way? Because we need the open throat and low larynx still.
So the trigger for open throat and low larynx is not the breath pressure, but rather the potential breath pressure.