Typo. For "Brass Money" read "Brass Monkey" the band. Then the following comments about Carthy and Kirkpatrick makes sense, as leading members of the band.
I don't really claim it as an "argument" as such - just pointing out something that is true. There are indeed ways around it - but are they ethical? What sort of arrogance is it that claims "You play some good music, therefore you must let me play it too."? I might think that open-ness in such matters is a good thing, but does that make it right for me to over-ride the wishes of the creators and owners of the tradition?
Not only a Folk Police but a Folk Fuehrer - you MUST let other people play your tune!