Taking embellishments and layering in key change and relative majors- another mind opening lesson Robert!  I was just back visiting a favorite MGA lesson:  Hendrix Chord Embellishments, and seeing more of the forest instead of the trees, and along comes this lesson that gives that wider view a step up.  

Sometimes concepts should be obvious but this example breaks out the path for moving embellishments outside of a set scale (like playing a rock progression such as E-G-A or A-C-D, etc.) AND the change from E to Em really moves things out of static key nicely.