Excerpt from Some Practical Things in Piano Playing
Raise and depress the wrist slightly, in rhythm, D (down) and U (up). Notice how the wrist feels; it should be relaxed, there being no muscular action except what little is needed for the two finger tips that grip their keys....
Arthur William Foote (March 5, 1853 in Salem, Massachusetts – April 8, 1937 in Boston, Massachusetts) was an American classical composer, and a member of the "Boston Six.