- Gives you complete control and freedom.
 - Allows you to sing in many styles.
 - Replaces mystery with fact.
 - Allows you to sing without straining.
 - Has no aesthetic bias.

The Estill Model was developed by Jo Estill, a singer and voice scientist. 

Her pioneering research resulted in her developing the figures for voice, identifying and isolating the separate structures involved in vocal production, allowing a new system of training based on muscular awareness backed up by physiology, rather than solely imagination and metaphor.

This work on 'craft' - honing the muscular work connected with voice production, combined with the 'artistry' connected with style, musicality, storytelling and interpretation, creates the performance magic that all performers strive for.

Holly is a certified Estill Master Teacher (EMT) under the mentorship of Anne-Marie Speed.