The shapes, both major and minor ... deviated from the pentatonic pattern because I’m thinking about how I might embellish a G chord, rather than playing notes from a scale.

It’s generally played as a ‘two notes per string’ shape - a useful structure that helps you figure out a suitable two-finger fretting pattern ... In the minor pentatonic scale every interval is either ...

Guitar skills ... that old blues idea of playing pentatonic scales over a 7th chord (A7). Of course, we’re stepping outside of the minor pentatonic scale, too. The very first note in bar 1 is a B ...