An electronic music generating device may include key assemblies. Each key assembly may include a base, an arm having a proximal end pivotably coupled to the base, and a cap carried by a distal end of the arm. Each key assembly may include a foot coupled to a distal end of the arm and extending down to the base in spaced relation from the proximal end of the arm, and a stop member carried by the base and to engage the foot upon movement of the arm to a depressed position. Each key assembly may also include a biasing member coupled to the arm and to engage the base for biasing the arm to an unpressed position, and a magnetic position sensor associated with the foot. A controller may cooperate with each magnetic position sensor to generate a sound based upon a sensed position of each foot.