View Full Version : Why do Bach mouthpiece rims become flatter as the cup becomes deeper?

Pocket Trumpet
09-22-2011, 05:25 PM
I have a very large collection of Bach trumpet mouthpieces and have often wondered why Vincent made his rims flatter on most of his deeper mouthpieces? For eg the #3 and #6 etc but C cups are almost always softer than the flatter B cups. I have a number of older Bach catalogues but it does not explain the reasoning. I am asking here because I don't have much faith in most forums and I want to find out Vincents real logic and reasoning.
I hope someone who really does know the true reasoning and logic behind this design.
Thank you Richard.