An electric instrument music control device is provided having a foot pedal comprising a base portion and a treadle, wherein the treadle moves with respect to the base portion. The device further has a magnetic displacement sensor coupled to the base portion and a magnet coupled to the treadle. The magnet is located adjacent the magnetic displacement sensor to place the sensor in a field-saturated mode, wherein the magnet moves with respect to the magnetic displacement sensor in response to movement of the treadle with respect to the base portion. A sound characteristic of the electric instrument is modified in response to moving the magnet with respect to the magnetic displacement sensor.