Following the best-selling Jazz Piano Chords, this informative volume provides a scale reference and practice tool for any pianist wanting to learn to play jazz. Starting with diatonic, pentatonic, symmetrical and exotic scales, more advanced composer and jazz scales are introduced. The following discussion of polytonality, alternating scales, using scales with chords and scale chords represents the dominating concepts of contemporary jazz. The book ends with extensive 12-key libraries of scales