Book excerpt: For a jazz musician, being able to manipulate chords and progressions is an essential part of defining one's own personal musical style. This book is very effective in helping to develop this skill. Creative Chord Substitution for Jazz Guitar explains the technique of chord substitution as a tool to expand and vary existing harmonic progressions. The theories of advanced harmony discussed here will enable any guitarist to have, at his fingertips, seemingly endless possibilities of chordal color -- possibilities that will take him far beyond the written page, and unlock an unlimited world of creativity as a player, arranger, and composer.