Here's Ally Pally in its prime:-
https://www.youtube.com/watch?v=amgzdqbdsHQ
Great lead story, and purely coincidental I hasten to add (did I mention that we've been hosting the Flying Scotsman loco at the Bluebell in the last week? No? Well I have now!
Good tune isn't it? Girls in Grey by Charles Williams and dedicated to the wartime Women's Junior Air Corps that became the Girls Venture Corps Air Cadets, so no thread drift therefore! He also composed the themes for Dick Barton (Devil's Gallop), Jennings at School (The Old Clockmaker), and the Potter's Wheel interlude (The Young Ballerina)