Much ink has been spilled on the study of symmetrical scales, producing many method books which at best offer a superficial examination of this broad subject. R

Surprisingly, few studies have been made that address the possibilities of musical scales. This book is, to the best of my knowledge, the first of its kind to e

Haerle presents the scales used in improvisation and explains applications. Scales shown in all keys and treble and bass clefs include blues, ionian, dorian, ph

With content ranging from theory and history to practical exercises, examples, études, and play-along tracks, this book offers the most comprehensive guide

" ... Written to organize, codify, and demonstrate useful information which has proven to be helpful in learning to play improvised solos in the jazz idiom ...