Watch the The iii vi ii V Progression online guitar lesson by Adam Levy from Rhythm Makeover: Adam Levy

Here’s Example 6 - a iii-vi-ii-V progression in the key of C major. It has a similar feel to Example 4, because both are what we call “Circle Progressions.” That means that as the chords change, their root notes are moving in a circle-of-fourths way. In this case: E to A, then A to D, then D to G. Composers have been using this device since before Bach, so don’t be surprised if it sounds a bit baroque to your ears.