PerMUbeat is an essential tool for any drummer, percussionist, music educator, and others interested in making and hearing beats. It is the perfect product to develop coordination between the hands and feet. By utilizing an intuitive beat entry interface, drumset beats are easily entered. Designed to expand your rhythmic creativity, perMUbeat creates beat patterns derived from ALL mathematical possibilities based upon the beat you enter. Enter a beat, listen to it played for you, and then select (i.e., create a permutation) of that beat to hear and see a variation of your original beat. As a side benefit, the beats are also displayed in musical notation.