The Guitar Grimoire Harmony and Theory is as easy as 1, 2, 3. Best of all, scales are graphed out for you in all twelve keys so you can start using them immediately while you learn. Complete explanation of all five-,six-, seven- and eight-tone scales and modes. This is the only book you ‘ll ever need on scales and modes! Its an encyclopedia with over 6,000 diagrams, charts and graphs. The essential volume for every guitarist’ library.