Keith is alternating between the G pentatonic blues scale (the start), the A pentatonic country scale (when the songs turns to A) and the D pentatonic country scale (when they change to D). Finally, he plays the last part of the solo in the G pentatonic country scale, not following the chord change with a change to D in the end.
Puuh - this was the easiest way for me to describe it anyway
Forum:
Tell Me