I think this is possible, sort of.
Export JUST the piano part as a .wav and/or save as mp3.
Go to Fadr. Sign up for a free account.
https://fadr.com/Upload stem to FADR and have FADR read the stem.
Export the midi.
Open the midi in a DAW and use a piano VST from a good library.
Edit, quantize, fiddle with it.
There ya go.