Every since I came across that video it has help me out of knowing what chords I can use over a particular note. Things get quite interesting when its seventh chords added in the mix! I started coming up with versus for a song. And while singing the melody, I was determine to know what chords I can use. It has been an amazing ride the last couple of days because then and only then that I began to understand what chord I can use over a particular note for my chords I can choose from after seeing this video and what I got out of it. So far I been coming up all kinds of chord progressions Imaj7 - IVmaj7 - iim7 - iiim7. Just to name a few.