I've read
PT over and over, and I seem to pick up something new every time I read it....still working to absorb it all. I've started putting it to work on the fretboard, and it definitely makes things a lot easier and more sensible than trying to learn all the scales, modes, etc. in a helter-skelter fashion, as I had been pre-PT. It really does simplify the fretboard and allow you to move up and down the neck without "losing your place". Now it becomes a matter of making my fingers do what the brain tells them to!
