yes my thoughts too Dave
however the producer probably does not know that"The Croppy Boy" is set to an old Irish air called "Cailin Og a Stor," which is at least 500 years old. This air also provides the music for the folksong "Lady Franklin's Lament" (also known as "Lord Franklin" or "Sailor's Dream"), upon which Bob Dylan based his song "Bob Dylan's Dream."
which is why i remarked earlier that professional revival singers are not necessartly the best people to discuss the roots of the music, a lot of them are occupied entirely with their own egos and perfomance