| The concept seems to be an extension of the technique of imagining 'aiming' notes distances from the bell. Lower notes roll out and higher notes are projected 4,10,20, 40 feet in front of the trumpet. Personally it's always worked for me.
I actually find that if I've done the hard work and stay relaxed in my usual playing range, my high range is comparatively easier.
Great tips.
Regards,
Trevor |