Sticking with the same position, but adding one of those high root notes at the 19th fret, this section is more about rhythm and pitch variation than knowing lots of licks. Try each phrase and see how closely you can emulate it. This is a great way to absorb new ideas.
Here, BB gets things shifting, moving from shape 3 to shape 1, adding the odd major 3rd (D) as he descends to the sixth string. A real bendfest in bar 45 takes us way down to the lower reaches of the fretboard. This is surprisingly tricky (BB did have some chops!), so take your time.
For the final couple of phrases, we’re jumping around the fretboard a little. It’s interesting to compare this with how Eric closes his solo; from the 4th fret up to the 19th for another of those root notes, landing in a shape 1 style phrase, incorporating the home key’s 6th (G#) at the very end. So there you have it – yes, there are always new patterns to learn, but it’s often about being fully ‘present’ when playing the ones you do know.