Theory and Harmony Wall Chart presents a graphical overview of the most important elements of musical harmony: the circle of fifths, the essential scales and modes, chords and their inversions, key signatures, and the diatonic chords in C Major, as well as an easy to understand diagram of chord symbols. Whether at home or in the studio, this wall chart is an indispensable tool for all musicians. 24" x 35". Published by Mel Bay.