Dr. S, that is interesting to read about. At some point I thought about posture, and that as much as it is about balance, we still need a certain amount of strength to stay upright and if you are weak or doing things the wrong way, both will create strain. That thought is what brought me to the gym.
Btw, one of the things my trainer started on is what he dubbed "synchronicity", meaning the body works together as a whole from the center. I am remarkably poor at this (and hate the exercises because I'm so poor at them). In one of them you hold a (weighted) medicine ball at body center in a semi squat, and then bring it to the upper left or right as if stacking shelves while rising. You are transferring weight while staying centered, and the motion involves feet, torso, and arms which most work together. No joint should be locked. The other day I came from this exercise, to the violin, and thought of the experience while playing. For a few minutes that sense was there for me at the violin and as the bow moved in whole bow strokes, there was a richer and deeper sound. I have no doubt that this contributed.