EVEN THE MOST ‘ROCK AND ROLL’AMONG US have probably marvelled on occasion when hearing the harmonic possibilities coaxed out of a guitar by the likes of Joe Pass, Barney Kessel, Wes Montgomery and Tal Farlow. While this feature doesn’t claim to be the last word in how to achieve this, it should give you some interesting information, not just for chord playing, but in note choices for embellishments and solos, even over blues-rock powerchords.
Though the underlying chord may be simple, there's usually scope for adding melodic interest by superimposing more harmonically detailed ideas. Even the Blues scale contains a b7th, which is not present in your average blues accompaniment. We are simply extending that principle a little further, moving to jazzier pastures with this ‘standard’-style chord progression of Cm7-F7-B b maj7-E b maj7. Let's see what fun we can have with it!