What? a button accordion/melodion can only play in a couple of keys? Lies and calumny, Skippy. Amend your website immediately! A DG or similar box, yes of course, but the Irish B C or C C# ones, since they play a full chromatic scale, can play anything your high-faluting piano accordions can - perhaps not quite as quickly. Nevertheless, of course the very best with the venture, let us hope Black Diamond boxes are soon the norm in sessions and bands throughout the land.
We miss you up here in the pissant swamp, do come and see us soon, let's ruin a few toons and songs together.
Lawrie