"…remembers that for me" — one of the exercises done with dementia patients uses memory aids, for example old typewriters, crockery, newspapers, radios; and music from the era when they were young.

It is true that memory loss first attacks the short-term memory ("Yesterday? Didn't we go to that film? Oh, was that a year ago?"), while people can remember their childhood. But as the brain cells are walled away and the networks damaged, people can only remember with help. "What are my children's names? Oh, thank you… now I remember."

The song is a beautiful, but for me unbearable, evocation of the chaos of dementia, with that one enduring love lighting the way through the dark corridors.