Yeah, yer right, Mark -- I got thrown off by the D==>G transition before I realized it was based in the key of F.

Thus it is, actually a circle of fifths sequence, of the sort used in many ragtime and old-time and jug-band numbers in varying degrees -- examples which come to mind are "Five Foot Two", "Keep On Trucking", "Walk Right In and Set Right Down" and dozens of others not at my fingertips right now.

Just as Maximus so unkindly pointed out.


A