A Good Tune Can Be Found Anywhere

In a child's nursery in France, for instance:



Or a Civil War encampment:



Or in the midst of some Tchaikovsky at the Royal Ballet (at least for the first 50 some seconds or so):



Or here. Yes, even here:



In pipebandland it's called "The Steamboat". No idea what Pëtr Illych called it. Probably "the country dance bit" or some such.