Hello and thank you Steve.

Oop North is where I am. I'll look for your paper online.

Extremely unlikely to be in London on 10th November, but hope it goes well.

Jag

Interesting point about the focus on sole singers: in Roud it says most 'trad' singing seems to have been like this, though it also discusses glees and rounds, and the Copper family are mentioned, with question about how typical they may have been. I found some of their work on youtube.