: I am involved with a project involving International recordings.I will explain it further
: I have been collecting Archive and current recordings of concertina players to show the
: versatility of each concertina system.Anglo and English so far.

Sounds like a great project. Now start over and throw away all your original questions, none of them have anything to do with that. Maybe start a new and explicitly named thread without all this bullshit.

You need to organize it so as to bring out the differences between the different systems. Get a performance of an Irish reel on an old brass-reed Anglo and put it beside a similar tune on a Wheatstone English. Put different tuning systems side by side playing similar music so you can hear how it affects things. Get a bunch of people playing the same type of box on a wide variety of different styles so you can hear the range of things you can do with each. Look at variations in technique, like Simon Thoumire's unusual grip or the way tango players mostly play on the draw, and see if you can hear that in the result.

I guess you're going to include chemnitzers and bandoneons too? People using the concertina to accompany singing? Bass concertinas used in mixed groups?

But I really can't see why you asked ANY of your original questions. They just don't matter to what you're doing.