Went to church at the Augustinerkirche, which has a very good choir and orchestra (Shubert and Bruckner both conducted masses here). They did the Haydn Kleine Orgelsolomesse and three Bach pieces (which I found a bit odd in this bastion of the Counter-Reformation). Afterwards we walked up the street to the Albertina, where we saw the newly-acquired Batliner Collection, including works from Cezanne, Monet, Munch, Picasso, Rothko, Liechtienstien, and more.
My internal clock is off-kilter, so came back, had a nap, then dined on some wonderful things at the Restaurant Imperial in the hotel.