Hi, meant to reply on YT but not had the time and I didn't know offhand anyway! Some mischievous people suggest the opening line is 'Ten Green Bottles'. When I worked on this, my teacher had some very interesting general comments on the theme. He prefaced them with a summary of differences between French and Teutonic culture (he studied at the Paris Conservatoire), in particular drawing attention to the French tradition of a rather knowing mockery, or in simpler terms, piss-taking. I wasn't fully convinced, but he maintains that most people play the theme too quickly and it should be, as commented before, a comic, knowing thumbing of the nose, not something faster, lighter and more trivial.