Yes - I can see that. And there are other examples too (including 'uncollected' works - though that's a moot point in it own right - within social groups where the aural process does still operate - such as travellers, perhaps, and maybe some island/isolated communities), so perhaps we need a fifth defintion.

But these examples are faily few and far between, so in the main I think my four will do for the purposes of this debate.

As I say it there's a lot of overlap between the defintions, and it's in these overlaps that all the problems occur, because people will use the word traditional and mean, for example 1) and then others will take it that they mean 3). Or 2), and next minute it's listed on some album as 1) and treated as 4).

That's why this debate is important.