Watch the Western Swing Lead 1 online guitar lesson by Joe Dalton from 50 Country Guitar Licks You MUST Know
Grady Martin would use a short melodic phrase of this type. Other listening would have to include Bob Wills and the Texas Playboys, Leon MaCauliffe, and for a more contemporary artist, George Strait. The phrase is simple. The harmonic feature here is that we accent a non-chordal tone. The first note is an F#. That's the sixth of the A chord we are holding for two beats. Spend some of your practice time getting the touch and the feel just right. Don't pick hard. Let it flow.