The Harmony Matrix® condenses the operational music system. It presents a new sound-color and pattern association to music education. This helps the musician to see the big music picture of connected sound order. You learn the new "Universal E Music Code™" with 3 parallel lines and 4 sound-color boxes in each line. This code only replicates its same order and is behind every music scale, chord and key. It acts as the master music organizer for everything you know about music.