"My right-wing views and my Larry the Lamb impressions"

Jim, that sounds to me more like a parody of what he felt were the views of others, than his own opinion of himself. Like Vic I had some late-night arguments with Peter over politics (amongst other topics) when he stayed over after the folk club, and he was always most insistent that he was not of the political right, but studiously apolitical. What he did claim was that the folk club network was run by lefties who wouldn't book him because they perceived him to be right-wing, a claim I disputed.

He certainly was a contrarian, who loved arguing for the sake of it. "What's this second-rate music you're playing me?" was typical - and you were expected to justify your choice. It was easy to make the assumption that someone who unleashed such vitriol on the political left was in fact of the right, but he claimed it was merely Devil's Advocacy. I was never entirely sure, though.

"I would just add that most "professional" folk singers that I have encountered have been grasping skinflints"

Ooh dear, bang to rights there!