I ran into this while doing a TF course called Blues Soloing Strategies (great course by the way!). The instructor made the comment "Any time a flatted 6 chord comes your way, target the blue note, the flatted 5th." I can't seem to find a simple answer that I can understand... "The flat-six, which we’ll discuss now, is a major chord from a parallel scale. So if you’re playing in C major, it will be an Ab major. If you’re playing in A major, the sixth-chord will be an F major". Can anyone help me understand this?