The book provides a step by step guide to chord progression containing studies on;- The Cycle Of Fifths The II-V-1 progressi on Chord Notation Cycle Extension Further Extension Turn-Arounds Relative Majors and Minors Alternate Cycle Use of the Dominant and Alternate Voicings Half-Dimninsheds and Diminisheds. Giving the keyboard player a basic vocabulary of scales and chords chord changes and voicings that will help the confusion of jazz improvising disappear.