UB Ed, good on you -- you and your friends would be a rare table of fellows here in my town. But it's the table where I'd rather sit! :-)
Shona, here are a few of your homeland's songs you can find in the DigiTrad and might find interesting:
I Know Where I'm Going
The Twa Sisters
Such a Parcel of Rogues in a Nation
(and the one that brought me to this site:)
Bennachie -- second page version
If you like any of these, tell us: it might give us a lead of what else you might enjoy, so we can point them out in the DigiTrad.