This book begins with an extensive review of the chords and keys previously studied, using fresh and interesting material that will provide enjoyment as well as reinforcement. Particularly noteworthy is the systematic presentation of chords in all positions in both hands. Alfred Publishing Company This book begins with an extensive review of the chords and keys previously studied, using fresh and interesting material that will provide enjoyment as well as reinforcement. Particularly noteworthy is the systematic presentation of chords in all positions in both hands.