Yeh, well ... Eisteddfod. Folk music gets very little help (ie Arts Council) at present because they claim that folk is part of the Eisteddfodau. Yeh, sure. I take your point about the adjudicators - if it ain't in Blodau'r Grug, it ain't Welsh. But that's more a reflection on them NOT keeping up with current research...I think Mudcat has often discussed the movement of tunes and reckoned that, with many, you just can't do it conclusively. There *are* a lot of English tunes surviving in Wales where they've died out in England and such is the case of Ffarwel i Aberystwyth ... as well as many (most?) plygain tunes. So what? They've been absorbed into the tradition, and only a living culture (i.e. not dead) can do that.
That's interesting - White Joke and Calch Gwyn Morgannwg. Gwyngalch is whitewash ... so a Glamorgan Whitewash? 8-}
sian