Not recognizing the player but he’s just playing the blues in G (A tenor)
you can play the G major pentatonic which he does but also uses the Bb a lot, which is the minor 3rd.
the intro lick for his solo for example is just a series of 5 notes played up and down over and over…sounds more complicated than it really is:
D E G A Bb then back down Bb A G E D
most every other lick of his solo stays with this scale G A Bb C D E F which is a natural G minor scale
this is played over a major key slo you have the option of a major or minor 3rd, he went for the minor
(I’m doing this on piano so remember to transpose it up a tone for your tenor)