Acoustical Gap Simple
Ideal Intonation Pattern
Here is the ideal relative intonation pattern that we would all want with our gear and the way we play (your setup). To achieve this with all the trumpets and mouthpieces in the world would be like finding a needle in a haystack. We can help get as close as possible by adjusting the gap on any mouthpiece/trumpet combination.
The dotted lines represent the about where the notes can lie for it to be ideal.
This is an example of what it would feel like if the gap was wrong for how you play with your setup. The harmonic series of the trumpet are very much not in tune with each other and would result in the equipment feeling hard to play.
This is an example of what it would feel like if the gap more beneficial for how you play with your setup. The harmonic series of the trumpet are closer in tune with each other and would result in the equipment feeling good, but maybe some notes are harder to play.
This is an example of what it would feel like if the gap was a good fit for how you play with your setup. The harmonic series of the trumpet are even closer in tune with each other and would result in the equipment feeling much better and easier to play.