Rick Chartrand

Perhaps this may help. I normally play a Bach 1c and get about 2 1/2 hours of endurance. When I play a shallow Holton Heim #2 (10c) small cup mouthpiece I get a whopping 5 hours of endurance. Additionally this mouthpiece adds about 4 or 5 notes to my range, and physically is 10 times easier to play. I can go forever on my Heim.

The larger the cup, more of your lip is exposed and thus your lip tires much faster.

Think of it in these terms. If a body builder does only a few reps with heavy weights he will tire his muscles out much faster than if he uses lighter weights with a lot of reps. In this analogy the heavy weights are the large cup mouthpiece and the light weights is the small cup mouthpiece. Muscles are muscles and the same principles apply to embouchure or biceps.

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Work hard for what you want, and you’ll get it

Equipment
Martin Committee Trumpet, T3467RE
Holton Heim # 2 Mouthpiece
Bach 1c Mouthpiece

Rick AKA Trumpet Man