I saw this video of
Jon Faddis and I didn't hear a word he said, but I was in awe to get to see a really close up look at the gap between Jon Faddis' two front teeth. I don't know how that helps him play those super high notes on the trumpet, but it has to have something to do with his phenomenal
high note trumpet playing.
There aren't too many trumpet players that can get the fat kind of sound that Jon Faddis can produce on the trumpet.