Watch the Breakdown 3 online guitar lesson by Andy Aledort from Slow Blues Power

Moving back to the IV (four) chord, C7, in bar 5, I switch from G minor pentatonic to G major pentatonic because, as we’ve discussed, the notes of G major pentatonic—G A B D E—are virtually the same as those of C major pentatonic—C D E G A. In this way, G major pentatonic clearly references the C7 chord by including the C7 chord tones E and G; if you expand G major pentatonic to G major hexatonic—G A B C D E—we get another C7 chord tone, the root note, C. Not far off is the equally useful C Mixolydian—C D E F G A Bb. And this is exactly how the aforementioned “B.B. box” comes into play; in G, it includes D E G A Bb C and D.