But so far as I can decipher the voice over, it says that the Cardinal doesn't have as much personal time as he would like, but even though it seems a bit of a contradiction (given his line of work at the time, I suppose) the art of music is very important to him, even when the performance is not letter perfect (that's when he bobbles the sharped note and mutters to himself!) - art to the Cardinal has a "God-dimension" to it.
That's more of an educated-guess translation on the fly than anything else! We need somebody who has been listening to German on a more regular basis than I have!
It's the Bach C minor lute prelude, btw, BWV 999.
use it or lose it!
I lost the grasp of Spanish that I used to have by not using it. When I learned it in high school, the U.S. hadn't been run over by Spanish speaking folk, yet.