Age late 60s, had many lessons before 12 yrs old, haven't played in 50+yrs, just getting back to it, SLOWLY! Was wondering if there is any PC program to hook to an electronic keyboard that shows what key is struck while following a staff of music so as to aid in sight reading. What I'm getting to is instantaneous feedback by having the note on the sheet music on the computer change color when the note is struck on the keyboard IF it is the correct key hit and if not, the wrong key struck shows up as say yellow. I was thinking this would be a way to get through basic key work for sight reading. As a follow along, a moving "window" would move along the music staff to denote a "timing" frame of when to hit the note. This window could be adjusted to narrow down the "slop" as skill level increased. I realize that this is not "piano lessons" but just eye finger co-ordination much like a typing tutor.
Does anyone know of any training program like this? I have looked at some of the electronic teaching systems and they don't seem to provide this instantaneous feedback to the eye.
Here's hoping I don't get shot down for asking a dumb question
Thanks for any reply.

I remember seeing something called Piano Cheetah, maybe check that out to see if it does what you require. I'm not really familiar with these programs.

There is always synthesia.

I've not kept up to date. But it has an onscreen keyboard which you press a key it shows what key you pressed and only lets you progress when you hit the correct key.

Last I used it, the sheet music scrolled at the top with a red bar marking where you were. While the main portion of the screen used falling notes, almost like an automatic piano where there is paper with holes in it.

I drifted away from synthesia tbh because I found it was teaching me bad things. But if you have a lighted keyboard then it can also give you direct feed back by lighting the keys. You have to buy the $40 learning pack though.

Though a lighted keyboard will limit you primarily to 61 key er keyboard.

Unless you can find the super rare Casio PX-500L.