My first thought was Haydn, but this sounds like a piano concerto. Did Papa Joe do piano concertos? It seems he did, well whaddya know? (I didn't - I just googled it). All you have to do now is listen to his dozen or so piano concertos… if it ain't that, it's probably one of the less talked about Mozart piano concertos.
69 days ago
Gravell (the last of us) is not very likely (e.g. wrong genre). Mozart is quite possible, I will look for it.