This, gentlemen, is how yer ‘posed to dress.Early during his Bumbershoot set at the Mural Amphitheatre Saturday afternoon, a nattily-dressed Just Townes Earle (his country gentleman fashion sense recently earned props from Esquire) let slip a little news about a show he’d be playing at Ballard’s Tractor Tavern Sunday night at 9:30. Say what? We thought Bumbershoot bands were contractually barred from such double-dipping?Well, they are. But Earle–who must have some Wainwright blood slipped into his pedigree, so thick and dreamy is his low register–is merely honoring the wink-wink tradition of playing under a goofy moniker at a reputable local club after the Bumber-dealin’ is done. Hence, Earle’s Sunday night band name: Alabama Finger Bang, which appears to foretell a looser set than the crisp burst of country classicism he delivered down by the Needle.Hopefully, Jason Dodson of the Maldives–which introduced fans to the opposite end of the Americana spectrum with a scorching set packed with dueling guitars and a flying Jesse Bond immediately before Earle and his acoustic collaborators took the stage–will open under the name “Redneck Riviera Reach-Around.” There aren’t two truer voices in country music today than Earle’s and Dodson’s.