A master catalog of major, minor, pentatonic, and blues scales in the keys of C, D, E, F, G, A and B. In addition, the Mixolydian, Dorian, Phrygian, and Locrian modes are presented in each key. A fingerboard diagram appears at the top of each page. The scale or mode is shown in numerous positions on the fingerboard, and a riff is shown in notation and tablature utilizing each scale or mode. This comprehensive text also includes charts showing the history of scales and modes, formulas,