An Unfortunate Rake

So I was watching the second season of Ripper Street t'other night, and it reminded me of that scene in season one where all the coppers sing "The Unfortunate Rake," which sadly isn't on YouTube, although if you need a reference this is:




With the song running through my head, and it being that time of the year, suddenly something clicked, and I realised, wait, I know that rhythm, those