Hi, I have the following problem in a piece of music I learn actually, but it is so basic, that everyone will encounter it earlier or later: a Decrescendo on an e2 over 8 beats, beginning with a mezzoforte.
Am I understanding you, Greg, right, that the Decrescendo is produced by gradually reducing the amount of air that is actively applied, and not by making the aperture smaller?
Hey Dirk, it is such a fine balncing act but I would suggest that it is a combination on both active support/flow and aperture size. I think this is so complex that the sound should determine the “work” involved and the feeling of BCH throughout is necessary.
Maintaining pitch is important of course as is tone purity. If the aperture remained exactly the same when there is less flow, pitch may slip slightly.