In the previous post, we learned how to cross the thumb in an efficient way, that is, making use of forearm rotation. Now let's talk about coordinating the crossings between the two hands. Remember, in parallel scales, the crossings occur in each hand at different points in the scale. The hands are mirror images of each other. Even though they are called upon to play parallel passages, the movement is not always the same in each hand. When there is a lack of coordination, it's that evil twin trying to make its sibling misbehave and do what it's doing. So, take a deep breath and read on. This sounds more complicated than it really is. (Review forearm rotation here: https://www.youtube.com/watch?v=h1Gwvaw7SQk). Excellent coordination requires really only one thing: when the thumb makes its rotational crossing, notice what type of rotation is required in the other hand at the same time. Practice that. Simple.
Well, at first it's a little like trying to pat your head and rub your tummy at the same time. Exaggerate the movements, first in one hand then the other. Then put the hands together. Slowly. Deliberately. Breathe. Don't panic. Keep in mind that this is an underlying tool and becomes so tiny in speed as to be invisible.
Notice that in the video I add an in/out shaping to the scale. Ignore this at first until the coordination is well worked-in. Remember, my demonstration is greatly exaggerated.
