I think the guy was actually drunk, I distinctly heard him say something along the lines of ‘F**K Copenhagen this is Zurich’. He was as baffled as I was that she acknowledged him and made a comment on the pronunciation of the word. For the record, the pronunciation is with the long aaaaa sound as on the song. The only people who mispronounce it are the Brits who say it as in Copen hay gen.
Otherwise, a perfect evening with Lucinda. She was on fine form, in fine voice and seemed to be thoroughly enjoying herself.