'll bet he's pretty good, but no way to know untill we hear him... 
This picture of the pope at the piano is astonishingly close to nonsense. I know President Clinton could blow in a saxophone, Boris Yeltsin did sing once in a rockconcert, but Arensky, hold your pony, dear.
You 'bet' for what ? A Popess ? A live Pope performance of 'Für Elise' ? A Muslim-made grand piano ? A Buddhist sonate ?
"The pope is 'pretty' good ?! To use the word 'pretty' to describe an eventually caracteristic of the pope is unappropriate. The pope is a rather stiff and ''fraud' kind of man.
This topic is rightly classified in Miscellanous. Anything But Piano could have been an alternative but I definitely think that Arensky, as a way of obtaining forgiveness, should post his version of a Maria Magdalena Bach .
Kindly