Good time swing tune. As far as I know the first ever "gold record" in music business history (for Glenn Miller in 1942).
The one version I know is in C.
As noted in the header of the tab sheet, almost entirely played in swing feeling (dotted eights). Not unplayable, since I tabbed it in G, a key that makes best use of open strings. For the timing, this tune seduces one to speed up. Better don't. "Laid back up-tempo" is how I prefer to play it.