The Power of major 7th, 9th chords

Gonna Fly Now - Bill Conti - Rocky Theme

https://m.youtube.com/watch?v=ioE_O7Lm0I4#fauxfullscreen


For example at 0:42 playing the bass code progression:
D9
E7
F7
E45
E


which really means this:


Left hand     Right hand
D bass and   F A C E (all notes together)
E bass and   G B D E (same..
F bass and    F A C E
E bass and   A B D E
E bass and #G B D E


See also Bach Bass Rules:
https://normanschmidt.net/scores/bachjs-general_bass_rules.pdf


Note: the chords can be very easily derived from the rule 1 3 5 7 9 etc with respect to bass. The key is C major so all notes are natural or white keyboard keys. This makes things even easier.


For example when bass is D right hand plays D F A C E
When bass is E, right hand plays E G B D
When bass is F, right hand plays F A C E
When bass is C, right hand plays C E G B