THE_ELECTRIC:
I found a couple alternatives, what do you think?
https://www.youtube.com/watch?v=eBa-cVq2MEY <-- not sure about the exact thing they're using to detect the finger presses
I think they are using these:-
You can get shorter ones.
https://www.instructables.com/id/Touch-Guitar/ <-- not sure if it can actually detect the position on the strings
Correct it can only sense when a String has been touched.
My own take on the MIDI Guitar thing, I did some years back:-
