Watch the Boogie On online guitar lesson by Matthieu Brandt from Guitar Lab: Triads and Hendrixian Double Stops
We'll continue with our so called Dominant Seventh Triads, which are four note dominant seventh chords (root, major third, perfect fifth and flatted seventh)from which we've removed the root or perfect fifth. We're left with a moveable triad shape on adjacent strings.
Tracking these triads down can be tricky, because some of them don't have a root. You have to "see" the root relative to one of the other notes that you are playing. In this boogie we'll research the different shapes you can form. It makes no sense in a larger band situation to double up on the root (which is being played by the bass) or to thicken the chord with a perfect fifth where so many instruments are fighting for a spot in the sunlight. Leave some space open and get rid of root or perfect fifth