In 1974 John Ware played a two-octave scale up and down for me. That was all I needed to hear. But it was the way he did it, starting pianissimo with a crescendo to fortissimo, and returning to pianissimo. Or it can be done with the reverse dynamics with a variety of articulations. Really quiet and really loud, without forcing or pinching. Always with a fabulous tone!
The rest of that lesson was inspirational for sure, but the details have been forgotten. What I remember today however, is the ease and finesse with which he released a superior sound!
Lesson 2 was watching him play first on the Planets in the Philharmonic. It was the same thing: power and finesse all in one player! Articulations exploded out the bell. We heard exciting dominating trumpet playing from a rather small, mild-mannered gentleman.
Of course, who cannot be amazed at the beauty of his Posthorn Solo in Mahler 3! His gorgeous playing still rings in my mind every time that excerpt comes up. He said very little that day, but his playing said everything I needed to hear!