Goodness knows how my mind works, Wolfgang! I had only heard the song once, didn't take any notes at the time, had had the fair part of a bottle of wine, was soaked to the skin...
I find it harder to remember things I've just learned, yet songs I haven't thought about for years suddenly come back to me ...isn't it a familiar sign of ageing? My dad has detailed recall of his war service but not more recent events (but he's nearly 30 years older than me!)
Sorry for wasting your time, I value the information you turn up here.
Best wishes/
RtS