I wouldn't say often. It was part of my education: the Pontiff ensured that both Roi and I were well versed in all aspects of the Church, from the best way to clean the baseboards up to reciting the scriptures and singing in the choirs. Playing the piano or the organ is a useful skill for a cleric to have.

[ not that he uses it much as an inquisitor, but, hey. you help where you can. ]

Though, to be quite honest, I couldn't reach the pedals for most of my childhood. It took until I was older to get that far.