Brian, Is there some confusion here between the version of "Four Loom Weaver" which MacColl has recorded on various albums, published in Singing Islands (I think)and is sung quite widely in the folk clubs and "Poor Cotton Weaver" as recorded by Bert on "The Iron Muse" and a longer set of words published in "Folksong in England". Certainly the latter is set to the same tune of "Jone o'Grinfilt" and the ensuing songs of that family. I have never heard that particular variant sung in a folk club except from a chap to whom I passed the words onto.