Listed below are some of the reharmonization ideas I got from him.
A ii chord substitues for a V chord (and a IV chord).
A iii chord substitutes for a I chord.
A vi chord substitues for a I chord or a V chord.
Change V-I cadences into ii-V-I cadences.
Insert a minor 5 (v) and dominant 1 (I7) in front of a 4 (IV) chord
A dominant chord usually resolves down a fifth or sometimes a half step.
Very often, if a progression is moving with the circle of fifths,
you can change one of the normal minor chords to major (making it a
secondary dominant).
Add a flat 9th to secondary dominants if resolving to a minor chord.
minor 7 chords likes to resolve down a fifth or in diatonic steps.
You can insert a diminished chord betweet 4 and 5 chords.
You can substitue a sharp4 dim - minor4 6th - minor 3 - flat3 dim - ii7 - V7 -I for a V-I cadence.
Which color note belong to each chord?
Major/Major 7th
9, #11, 13 (9 is the most common)
Minor 7th
9, 11, 13 (9 is the most common)
Dominant
b9, 9, #9, #11, b13, 13 (All are widely used. However, you are most likely to use b9, 9, b13, and 13.)
