Watch the Groovy Blue Sea online guitar lesson by Matthieu Brandt from Modern Mountain Banjo: Clawhammer & Up-Picking
In this 24-bar blues groove in the key of D, we're targeting the chords in the background with typical blues bass riffs and fills. The chords are C7, F7, and G7 and we're in double C tuning, so CGCD with a pedal G, capoed up 2. So, the chords that ring out are actually D7, G7, and A7. But for convenience, I'll be referring to these chords as if I wasn't using a capo. So C7, F7, and G7.
This one features the use of left hand triplets and some trickery like open string pull-offs to make cliché blues licks possible. We're also using a lot of drop thumbing to create syncopated bass lines, which will move the song forward and introduce some unexpected attention grabbers. We're using run-of-the-mill clawhammer, except for in the intro, which uses a triplet feel with up picking.