Book 4 Visual Keyboard Chord Progressions Return to catalog Table Of Contents   TO UNDERSTAND THIS BOOK   PRELUDE     Visualizing Major and minor thirds     Basic triads     Basic seventh chords     Chord symbols     Essential information about extended chords     Ineffective extensions     Construction of extended chords   PART I SUBSTITUTING EXTENSIONS FOR BASIC CHORD NOTES   PART II HARMONIC MOTION AMONG EXTENDED CHORDS     Holding the basic chord; changing the extensions       Major seventh basic chords       Dominant seventh basic chords       Minor and half-diminished seventh basic chords       Diminished seventh basic chords     Changing the basic chord; holding the extensions     Changing the basic chord; changing the extensions       Root moves by second       Diatonic scale root motion       Extending chords by adding thirds downward       Root moves up by fourth       Diatonic basic chords       Dominant seventh chains   PART III CHROMATIC WEDGES     Single wedges     Harmonizing single wedges     Double wedges     Staggered double wedges     Triple wedges     Triad combinations for starting triple wedges   BLANK KEYBOARDS   79 pages	Sample Page...   PART 1 SUBSTITUTING EXTENSIONS FOR BASIC CHORD NOTES Moving any extension down an octave puts it a whole step or a half-step ove one of the notes in the basic chord. When the basic chord note is removed, the extension becomes a substitute note. The 9th substitutes for the root; the 11th substitures for the 3rd; the 13th substitures for the 5th. In each of the following examples, the top chord in the column is a complete root position thirteenth, and the chords below it show 9th, 11th and 13th substitutions.