Thanks, all!

Dick - the full Ewan MacColl episode of The Borderers was uploaded to YouTube about a year ago by a member of this parish and can be seen here:
https://www.youtube.com/watch?v=KmZ1UtxnFxU

DaveRo - pretty sure it's Maida Vale tube station.

Lin - the singer is Jessie Buckley, who came second in a British reality TV show to find the next Nancy for a West End production of Oliver! I only realised after the fact that the guitarist in that band was Ewan MacColl's son Neill…

Dave the Gnome - thank you so much.

And yes, there will almost certainly be a volume 2!