He put a tweet up of his dad improvising from four notes on the piano. It is gorgeous. It featured on Broadcasting House. It went viral. The BBC Philharmonic are now going to record it.
It seems to have touched so many people and is perhaps a reminder of how people playing music is not a luxury. For this guy it is part of the structure of his being that continues even though there are many parts of himself that he can no longer access.
Original tweet here: twitter.com/mrnickharvey/status/1306672245255749632?s=20