Watch the C minor 6/8 Vamp: 2 online guitar lesson by Carl Verheyen from S.W.A.T. Sessions: Jazz Rock
I rock the typical C minor Dorian mode for a handful of bars before seeking out some "strange fruit" up a whole step in D minor. Then after a brief foray back to the C minor zone, I drop down to the 3rd fret for some G minor action, and the inclusion of the 4th (F) against the C minor sounds refreshing to me. I should do that more often!