I'm also interested as to how ripov came up with it so quickly.
I first heard it in a lovely polka set by Silver Arm which can be found here at
CD baby or on Spotify (it's the first tune of the French Polka- set on their Beech Tree album).
You're very kind to think of me, leenia but it might more appropriate to call it ripov's polka or whatever the french language equivalent is of Gan Aimn until we find a title.