I know Bach's music quite well from a listener's perspective though not from a theoretician's perspective. I'd be happy to share some pieces recordings that I've enjoyed / have found accessible.
Your last paragraph is obscure to me and I share your impression that you started to ramble :-).
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
(I plan to make these threads from now on. Downvote if you disapprove. If I miss one, feel free to do it yourself.)