I suggested a way to deal with the issue a long way back in this thread.

Let's call traditional songs and tunes 'Traditional Folk', and new or modern songs or tunes that show a respect for or an influence from the tradition 'New Folk' Stuff with an American influence we could call 'American Folk' Stuff with an Irish influence we could call 'Irish'.....you get the idea.

Then, and here's the radical bit, we could group it all together and just for convenience, we could call it all 'Folk Music'

How's that?

John