Watch the Backcycling & Diminished Subs online guitar lesson by Frank Potenza from Jazz Harmony Handbook

Here we'll incorporate an extended backcycling sequence that begins in bar 2, and cycle from the Em7b5 chord all the way to the Bb6 chord in bar 5. We have opportunities to use diminished 7 chords to substitute for the dominant 7b9 chords in the progression (bars 2, 3, 4 10, 11 & 12). We also see the use of 13ths that resolve to 5ths on top of the Eb9 chord in bar 6 and the Db9 chord in bar 8.