More generally, much of this discussion seems to reflect the difference between preserving a tradition , in the sense of maintaining some perceived, fixed integrity and keeping a tradition alive in the sense of accepting that change is inevitable. In the latter case, we can only try to ensure that any changes WE (as individuals) make contribute to the song's longevity rather than hasten its demise!

Can I be a bit rude here and say this is complete bullshit?
------------------------------------------------------

What, exactly, is "bullshit" here, please?

FWIW, Suibhne, I agree with most of what you say about "revival" (I particularly like your "revival conceit" concept!). But I live where a tradition remains alive - not without "revival" inputs as well, of course. MARINER, for example, could tell you how to avoid the Keeragh Rocks - and introduce you to the descendants of the lifeboat crew.