Four Score (and a bit more)

I went to Chippenham for a college "study" weekend in January of 1983. Browsing in a record shop I found a copy of Channel 4's "Four Score" theme that had recently been released as a single. I do love that piece.
I found my copy again during Lockdown, and my brain told me it could do with being a bit longer.
Well, a lot longer, actually.
Sorry, Lord Dundas.