Completely off on a tangent: A good friend of mine, getting on in years, just this weekend told me a story about the time he met one half of the composer-team behind that song, Benny Andersson of ABBA, at the absolute height of his fame somewhere in the mid to late seventies. Pleasant and low-key, almost self-effacing, superstardom or not. Someone tried to pull a fast one on him, and my friend, in a professional capacity, had to intercede. "Nah, let it be", said Benny in a very quiet Swedish way, "I can probably afford it".