Watch the Colorful Chord Extensions online guitar lesson by Frank Potenza from Jazz Harmony Handbook

Here we extend the tonic and IV chords in "Circle Changes" to include the ninth (F6/9 and Bb6/9). We add 9ths to all of the dominant 7th chords in the chromatic II/V sequence in bars 6-8, and a 9th and 13th to the C7 chord in bar 10. The dominant chords in the turnaround at bars 11-12 are D7b9 and C7b9.