The French Guitar Cook Book is not a method, it's a super cheatsheet for the guitar player : tips and tricks to ease learning, more than 160 scales and modes, in every key and every position on the guitar neck, harmonized in chords. Without having to read sheet music. What chords can I use to make a phrygian solo ? What scale to use over major13th chords ? The French GuitarCookBook will help you compose and understand music theory the easy way.