All due respect to a master, but I'm surprised at being so dismissive of the rules of harmony on a rudimentary question. I've always thought that artfully deviating from the rules requires a deep understanding of what those rules are. Lots of people's musical development (including mine) has been greatly stunted at some point or another by the rationalization that rules don't matter as long as you are being creative.
Edit: Perhaps you aren't responding to the OP, but instead to the people who have offered responses to the OP. Certainly being able to hear what you want to play and communicate that artfully with non-chord and scale tones comes from years of practicing the rules and transcribing and analyzing other players' choices.
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First - I'm not a "master", I'm just trying to make sense on the stand like everybody else.
Second -did you look at the link? If not, I think that doing so will answer a lot of your issues. But generally - I'm not "dismissive" of the harmony, but in the music I play it's really much more of a loose "framework" than hard and fast "rule". Much more important, to me, is supporting the melody and, as countless reharmonizations have pointed out, harmony is malleable. The only real "rule" is
does it sound good? Any musical analysis about
anything exists to understand why something sounds good. More things can sound good, the deeper and more nuanced your ear becomes. That's true of more than music. As to your perception of my "rationalization", I think you're missing the point. There's a great Frank Foster story - he's doing a JazzMobile jam session and somebody gets on the stand and just starts playing gibberish. Frank steps up and says "What the hell are you doing?" Cat says "I'm playing what I hear" Frank says "Well, hear something in Bb **********!"
The act of NOT playing a note that you don't actually
hear is hard for us to do. We all end up playing stuff because it fits a pattern or we heard somebody else do it or because the rule says it's
supposed to work, all of that gets in the way of actually making music. What stunted
my musical development was thinking that there was always some other scale, some other altered chord, some other
vocabulary that I didn't have that was keeping me from being able to sound like all those players whose records I had. But that's not it.
Hearing with clarity, with enough clarity that you can sing every note in a line you want to play
is not easy. But that's what it takes, that's what music is -sounds in the air. If you want those sounds to make sense to someone else, they have to make sense to
you first.
But yes, all of my posts in this thread were in reply to the responses and suggestions I read. In my opinion they point to some dead ends, dead ends that I hit at some point in time on my own journey. Anyone and everyone is more than welcome to ignore my advice.
As far as the original post/poll, I don't "think" any of those things. I just try to hear what's going on.