For example, in bar 3 I’ve deviated from the pentatonic pattern because I’m thinking about how I might embellish a G chord, rather than playing notes from a scale. Example 2 GIT513 Blues Lesson ...

Blues players often fall back into patterns: I always say that playing the blues isn’t about scales, such as the minor pentatonic scale, the blues scale, the Mixolydian mode and what have you.