The logo must be a reference to the drums.
The most common graphics elements for a drums are : the drum sticks , the snare drums , the cymbals , the tomtoms , the bass drums.
The drums sticks is held with the hand and between the thumb and the index.
The logo muts show one or two of those elements.
The most common associations :
The drums sticks alone with the hands.
The drum sticks + a snare drum
The drum sticks + a complete drum set
The drum sticks + the cymbals
The logo should show the speed on the drums and the facility off the method.
Beware : if the bass drums is represented , the bass drums is played using a bass drum pedal with the foot and not with the drum sticks.
The logo will be used on top of an internet sales page and on the front page of the paper version of the method.