Vast and tinkly, the Ludwig Museum’s café is, as one would expect, brimming with arty types and students. Serving better coffee that many, they do unfortunately feel the need to employ someone to bash out rotten tunes on a grand piano. But all is not lost, as the vast ceiling-to-floor windows overlook the regular pantomime enacted on top of the roof of the Philharmonie every time a performance takes place. Go and have a look for yourself.