You can't resurrect a fossil (leaving Jurassic Park Aside) - however a song such as "Dominion of the Sword" is very much alive and indeed topical, thanks to Martin Carthy for digging it up and breathing new life into it. Good songs are never more than provisionbally dead.

I think Mrr is right about Nyaah-Nyaah-Nya-Nyaah-Nyaah. I suspect that may well be pre-human in origin. As soon as those ancestral apes developed vocal cord I reckon you culd have heard them have been hopping around singing that at their baboon neighbours and riff-raff like that.