Packed with information! No other series for guitarists and keyboard players has been as highly acclaimed by musicians. Designed to fit into instrument case, comb-bound to lay open flat. The ultimate compact reference book of bass scales. 180 scales, in all 12 keys, in standard notation and tablature, with fingering suggestions and 5 different scale positions that cover the entire fretboard. Includes a handy fretboard diagram that illustrates each scale pattern all over the neck.