I installed LED lights on each piano key and turned on and off each of them to show which piano key to press for any given songs o that any novice should be able to play piano. I don’t play piano at all, but in this video you’ll see me playing with the help of the device I made.
As far as I know, no one has made something like this before and I am an amateur. It had been such a roller coaster ride building this without instruction manuals. You’ll be able to see how to build this device on my website soon.