| The area behind the mouthpiece must remain supple and relaxed in order for it to vibrate freely. This allows for fast vibration in the high range and slow vibration in the low range. As long as you play with the same embouchure, developing the low range (not pedals) will transfer to the high range. Too tight hinders both ends of the spectrum as the fast and slow vibrations won't work as well, only half-ast. :D |