This video gets into a few more advanced techniques down the neck, and I talk a little theory as well. Over the first V chord in the song, I take a ii7 chord and superimpose it over the first two beats to create what sounds like a V9 chord. It's a cool little trick, and I recommend you play around with the ii - V - I chord progression when you're practicing. It's essential jazz vocabulary and transfers over to bluegrass well. Click here to learn more about ii - V - I chord progressions.