"I don't think I've ever come across a 'single-row accordion'"
I said SINGLE REED ACCORDION

Whoops, my mistake! I did indeed mean to type "single-reed accordion". Very careless. And you are also right that the Lilly is a melodeon (and hence a type of accordion) with single reeds. Not that it sounds anything like a Morse anglo, of course.

Neither Howard nor myself said that the method of construction makes no difference to the sound - rather the opposite in fact.

You could theoretically accompany songs with a B/C accordion but it would be a very strange choice.

I'm aware that there is anglo-playing talent amongst your nearest and dearest, but your remarks about accompanying songs on the anglo suggest that you haven't explored the topic in any great detail. I've only been doing it for thirty-five years, so as you suggest I am no doubt way out of my depth in the discussion.

And I may be accused of presumptuousness, but at least I don't go flinging words like 'rubbish' and 'claptrap' around at anyone who has a different opinion.

PS who is 'Iris Boube' and what's her opinion? If it were Iris Bishop I'd be happy to listen.