Ah! I get it now. I'll try it out voiced like that. Actually, that's really clever. I'll not only have to try it, but think about it as well.
Much appreciated, both for the original idea, and the explanation.
Definitely the jazzier extended chords can (I'm pretty convinced) be shoehorned into the baroque style, sort of gradually weave the upper extensions in, maybe using some kind of line until bit by bit the ear is ready to ear the real voicings.
And then, baddabing you can get to something like https://www.youtube.com/watch?v=wqwmZsPe_3c
I still have to remember just how short attention spans little kids have, so that's my main challenge! I think I frightened the piano nephew by writing out some lead sheets of "Happy Birthday" and some other little tunes, you know, with simple chords above and just handwritten melody. Not quite there yet. ETA I should add, if I were "teaching" him, and not his grandmother, this would be all done by ear, so my compromise is to pass along little sheet music and stuff. I'll also ETA I just thought Bach sounded Christmasy, so I picked short simple pieces (I spent Oct and Nov doing all my stuff in E, and Dec is everything in A), but since he likes Beethoven, I might edit down the Rondo from the Op. 26 piano sonata to much shorter as an "encore," or maybe the Allegro from the Op. 126 bagatelles is short enough and has enough variation in mood. I made some copies for him of the simplest Beethoven I know of, the 6 Écossaises, but unfortunately that's way off. I could play those, and then do them a half step up in E (not that hard, you can even just read it straight off the page in E instead of Eb), but I don't like those very much. Never mind, I'm just rambling -- in music and in words, pretty long-winded!
EETA can't resist adding more TLDR, you know, never mind why I fixed on E major Bach stuff -- those tend to be, from what I know of his "book," short, pastoral things. The WTCII prelude is one of the comparatively few preludes I like from both books of WTC, but it's kind of dense harmonically and a bit too long. The one from WTCI is, IMHO sort of like a retarded (no offense) version of the E major sinfonia, but the sinfonia is I think too long and complex for kids to enjoy. And I don't care much for the stuff from the Emaj Fr Ste. Meh, maybe the Op 26 Rondo, cut down to brevity, hitting the (IMHO) important bits, then do that nice little Air from the partita, then just close out with a little xmas thing from one of the few xmas tunes I don't hate. Not doing the Guaraldi "Christmas Time is Here" (or whatever the exact title is again), kind of I've done it too many times at family holidays, and nobody sings along. So just close it out with a little Silent Night with a groove.
And,if piano nephew gets colichy, him being a Beethoven fan, I've already got the best lullaby behind "Lousiana Lullaby," namely the first movement Op 27.#1 of Beethoven. Just don't hit the allegro bits too hard.
Know thine audience!