This book and audio teaches excellent techniques to use for walking bass lines on guitar when playing in a duet format either with another Guitar player or with a Singer or other instrumentalists.The idea of this bookis to give a few answers to the question 'How do I harmonize walking bass lines when I've never done it before '. We will take the principal chords major 7 6 dominant 7 minor diminished and minor 7 flat 5 and walk basslines on the sixth or fifth string. Written in notation and tablature. Includes access to online audio.