This is one of the more difficult exercises. I was able to make decent progress because I practice from the Keyboard Wizardry book.
Aug 3, 2016
Thank you for this great idea. It is a very difficult one when going faster.
I'm trying to get comfortable with all basic cords and then trying different inversions. By brother Vincent works on his jazz theory book. I will borrow his book to get more cord and progression examples for practicing your technique.