Riley has me move the bench six inches, arch my back to shift forward my center of gravity, and straighten and raise my wrists so that the piano keys, rather than my sore joints, bear the weight of my arms.

• 芮利要我将椅子往后移15公分、背部拱起将重心往前移，并使手腕伸直、抬高，这样一来，承受我手臂重量的将会是琴键，而不是我那酸痛的关节。