The Blues in 12 Keys : 9780982957004 : 23 Sep 2010 : Constructing Walking Jazz Bass Lines Book I -The Blues in 12 Keys is a complete guide demonstrating the devices used to construct walking bass lines in the jazz tradition. Part 1 demonstrates the techniques used by professional jazz bassists to provide forward motion into bass lines, while providing a strong harmonic and rhythmic foundation. Part I includes triads, 7th chords, voice leading, playing over the bar line, chord substitutions, pedal points, harmonic anticipation and chromatic approach notes. The exercises are designed to give the Electric Bassist strong jazz bass lines in the bottom register of the instrument. As an added bonus for the Electric Bassist Part 1 provides a complete study of the Blues in F whilst in the first and open positions. This is an excellent technique builder. Part 2 expands on the lessons and techniques used in Part 1 providing the bassist with the previous devices used in professiona