I am thinking about getting this one. As I have mentioned up here that I play blues at a practice studio every other week or so. And a good part of the time, I am playing rythym, waiting for my turn to solo. We often have at least 3 guitars, a sax, a keyboard, sometimes a harmonica, so the wait can be long for my solo. I think it makes sense to learn to play something else during that time. Anyone ever try this course?