Well, M (may I call you M? I feel I know you well by now.) The tune begins thus:

"As I went a-walking in the North Country,
Down by Kirby Steven I happened for to be,
As I was a-walking up and down the street,
A pretty little buy-a-broom I chanced for to meet.

Chorus:
For she was right, I was tight, everybody has their way,
It was the lish young buy-a-broom that led me astray."

The action is set in the north of England, but nothing says our wandering narrator comes from there.   He could have come from Ireland.

However, we have a clue, the word "lish." My dictionary says it means "active, agile, quick" and comes from Scotland and the north of England. So if we assume that he's speaking his own dialect (and why wouldn't he?), it's safe to assume that lyrics are from Cumbria, where the action is set.

The phrase "buy-a-broom," meaning "broom seller" isn't in my dictionary. I like it.