There are differing schools of technique for playing the pedal harp. The largest are the various French schools. There are specific Russian, Viennese, and other schools across Europe. One is the Attl technique, after Kajetan Attl, in which apparently only the uppermost parts of the fingers move and the hand is largely still. There is a St. Petersburg school (more than one) in Russia in which the player moves the thumbs in a circular fashion rather than in and out toward the hand.