Wow fantastic : Be honest. You also know the video (_anrapa_ channel) from 11/30/2019 "_Sergei Nakariakov - AR Resonance Trumpet_" lol. You are well on your way. It's like playing table tennis. Coping by looking and listening. From 03:08 , I think it's called circular blowing (like a goldsmith, and Sergej can be seen as such !). Continuous playing without removing the mouthpiece. Only in between does a targeted, abrupt flow out of the mouth take place (I assume to protect the lips and to briefly relieve the lip muscles, right)?