This research deals with the interactive music control that music performing such as its music content, rhythm and lights are able to change according to the consistency of body movement of a large group. We had designed modules that extract body movement rhythm to create the necessary micro-second pulse signal, and that signal is transmitted by the cheap 433MHz AM transmitter to the receiving base station so as to control a MIDI control board. Signal is analyzed by MAX and converted to the MIDI control message to change the music tempo or content.