Sorry if this has already been mentioned - I had a search and couldn’t find it on here. Has anyone found that doing cardio exercise like running, rowing, cycling or anything else that you really have to breath hard for, helps improve lung capacity in trumpet playing? When I was having lessons my teacher suggested this as a means of improving lung capacity and stamina (I was incredibly unfit then ). I have since become far more active and when playing can keep the loud notes going for longer and with less discomfort. Is it my fitness, or am I just playing with a better technique now?