It was close, but we have a winner: Harliquin Air, a sprightly, simple English tune that might just become one of your favorites.
Here's some notation to get you started, but don't feel you have to play it exactly as written; find a key that suits you (ask for help if you need help transposing the dots; with ABC files, it's really easy), and find some way to make the tune your own.
According to the Traditional Tune Archive, the tune's archaically spelled title may refer "to a melody or one of the songs in Thomas Arne's (1710-1778) pantomime Harlequin Restor'd, or Taste Alamode, written in 1736."
As I mentioned, I learned Harliquin Air at a Northeast Squeeze In a few years back, when it seemed like almost everybody was learning it and playing it in the hallways. Which means it's a fun, accessible concertina tune!
Here it is played by Anahata and Mary Humphries with some really nice countermelody.
Or how about Gavin Atkin playing it on melodeon?
And at a big English jam.
Edited by Jim Besser, 31 March 2015 - 08:23 PM.