Mysha,
the above (that I posted) was fast paced. Possibly, although a quadrille would be slow and solemn, the whiting is trying to chivvy the snail along, hence the tempo.

Just my two-pennorth.

I did like the link with it to "Rolling down to old Maui". It must be a Lewis Carroll thing, as I've used that tune in the past for "You are old Father William".