Episode 13 Scale Formulas and Renumbering Chord Progressions

In this free guitar lesson you take a look at the interval
structure of the different modes of the major scale and how
musicians would number chord progressions that are modal. This
involves naming the tonic pitch in a mode “1” and then numbering
its other pitches from there with consideration given to any
change in interval structure like sharp and flat degrees. Taught
by Desi Serna of http://GuitarMusicTheory.com.