A dual foot pedal system operates on a bass drum with a beat having a different rhythm. The first foot pedal operates on the drum by a direct transmission from the pedal to the surface of the drum. The second foot pedal has a mechanism thereon that changes the relative position of the travel between the cantilevered hammer heads to obtain a difference of a beat on the drum. The difference is achieved by a driven disc which is operated by the second foot pedal stepped upon by the individual drummer. There is a floating disc adjacent to the driven disc adjustably connected to the driven disc which changes the length of time of the second cantilevered hammer head to travel to an impact on the drum relative to the impact obtained by the first foot pedal.