This book is designed to help bass players understand jazz soloing and the concept of scale and chord substitutions. Unlike most music books that deal with jazz scales and chords, the Bunny Brunel system is tailored for bass players, making the learning of harmony very simple and opening new doors for improvisation. | Bunny Brunel's Power Bass: Soloing Secrets, Boxed Set/Slip Case/Casebound | Indigo Chapters