Thanks for your explanation, Charmion.

I think the disconnect for me, when I heard the performance of the Elizabethan songs, was that I expected a relatively simple arrangement with a lute accompaniment perhaps, but the performance was operatic and ornate with a style of voice for each singer which seemed unnatural and overblown. It didn't equate in my mind to the relatively simple yet beautiful songs I had seen in the book.

Lighter, I'd be interested to hear an example of the Sean-Nós or the Canadian maritime singing that you mentioned.