On Chrystal Tsang's suggestion, I attended a free organ recital at the Jacobikirche in Hamburg where her daughter Lisa works as a pastor. The Jacobikirche is the only medieval church in Hamburg to survive the 1842 fire and the Second World War, though just barely and not without extensive damage.
These are all my pictures.
This was the featured piece at the concert. Alas I did not keep the program and I don't remember who the organist was, but his performance was very much superior to this.