Anders teaches all of the genre lessons that follow from the fundamentals.

Blues seems to have the steepest learning curve for moving from fundamentals, but the others start on a pretty basic level, so I think anyone would be ok moving from Lisa's lessons without going through Ander's GF courses as well, unless it's by choice.

That's one of the things I like about this site: where we go, and how fast, is entirely at each member's discretion.