Musicians, especially guitarists and bassists need to rotate around a sometimes cumbersome instrument. If you’ve been told to improve your posture, you’ll probably know what happens as soon as you pick up your instrument?
All you know about ‘good’ posture and body mechanics goes string out the window.
Movement mastery takes a different approach and gives you the tools to experiment so that you can develop a dynamic, fluid, supportive, evolving and intelligent physical behaviour.
There is no point improving or changing something that we can’t define. Every musician knows this based on their music learning. Motor control learning is subject to the same principles and movement mastery gives you the tools to truly see how and where you stand when supporting your instrument and the real time know how to develop efficient and masterful motor movement behaviour.