Fascinating stuff. Is Trad part of the folk scene? Don't know if it is now, but it surely helped kickstart the "second revival" in Britain.

Malcolm - I've come across snobberies on both sides of the fence (it's certainly not just the jazzers who put up barriers, as Dazbo demonstrated). I've also heard fantastic blends of folk and jazz - though more recently they've featured modern rather than Trad jazz. The Unusual Suspects and La Bottine Souriante spring to mind, and does anyone remember the jazz-folk supergroup Lammas? On the traddier side, there was that Martin Carthy/Diz Dizley collaboration in the 60s. And so many people on the folk scene have used trad. standards like "Nobody Knows You When You're Drownin' Trout" or "Pasadena" as suitably rowdy set-closers, there are arguments that the crossover of genres has always been there in part.