Of course, Silas is entitled to his opinion, as I am entitled to my experience. On the occasions when I have been to folk clubs and pub sessions with my Zimbabwean friends who are singers, as far as I have observed people are very happy if the visitors sing a Zimbabwean folksong. Lovers of English traditional song have not walked out, neither have the Zimbabweans walked out when someone sang "Pleasant and Delightful". No compulsion, no fighting,no unpleasantness. The vast majority of people on the folk scene actually like this sort of thing, I am delighted to say. Though clearly not everybody, unfortunately.