I'm sure some of you have heard of the Appoggio breath management that's internationally perceived as one of the, if not the, best breath management for (classical/opera) singers.
With that in mind, I went on YouTube and the internet generally to read and know more about Appoggio. One of the YT uploaders who clarified this technique as much as possible is Maestro Franco Tenelli.
There, he was talking about it, and said that the higher one goes, the more dynamical opposition one should practice, using the diaphragm. The singer's physical sensation of doing this would be "pushing down the diaphragm" (not literally).
I've watched and read the Appoggio explanations again and again, yet I still don't know how to create this dynamic opposition/pressure, even though I can control my lower abdominal muscles and the lot around it.
Basically, what I'm doing right now, is keeping my sternum up in both inhale- and exhale moments. In addition to this, when exhaling, I try to "delay" the muscles of my lower abdominal cavity to collapse/pull in. I also breath in "sideways" and it mainly happens around the lower ribcage & lower back area. And last but not least, I try to refrain pulling in the area right underneath the sternum (the diaphragm area).
So essentially, my physical sensation when inhaling is as if I "breath through usage of my back".
Now, having mentioned that, I can't see where this dynamic opposition is going to come in? Is this dynamic counter-pressure the "delay of collapse", basically, or is something else being referred to here?
Also, when singing higher notes, as I mentioned above, I heard that one should create more dynamic opposition in order to support that note, and in order to maintain the same timbre - which would mean the entire voice is one register (since supporters of Appoggio don't believe in multiple registers sensation-wise).
So, when going to higher notes, how is this reinforced/hardened dynamic opposition created? Is it by pulling in your belly (without pulling in the diaphragm area) right before singing that higher note (let's say F#4 or G4)?
I really want to know how this is practiced because it's highly frustrating to not know it, despite reading and watching about Appoggio countless times.