:-[In my experience it is very hard for an older person to acquire this primitive improvisational flow. Or more correctly, I have never been able to impart it to an older beginner. In other words the deficiency could simply lie with me. I think it has something to do with getting rid of conditioned inhibition. They can memorise thousands of chords and have a tremendous analytic knowledge but still can't do anything dynamic.I think you are on the right track though, and wish you luck.