Edwin Ward Jackson, Jackson's Gymnastics for the Fingers and Wrist (1864)
“ Suppose a boy from 10 to 14 years old, who is strong and healthy by means of gymnastics and other exercises, set to learn the piano or violin. His body is strong with gymnastic exercises, but his wrists and fingers are weak and awkward. How is he, with the method now in use, to succeed in playing an instrument well, without very long and wearying work? No wonder that the painful exertion almost makes him despair, and that finally he gives up the thing altogether. ”
