The C-Major Scale is played using sinewaves. The 12-note Tempered scale is used for the Left Ear, and the 12-note Just scale is used for the Right Ear. This allows two different scales to be compared. All the modes are played along with all of the 4-note chords of the major scale progression. This is an educational video that can be used for ear training, can be played along with to develop instrumental skills, can be used to understand musical harmonies. This is a musical scale in the public domain and cannot be copyrighted.