(Tractor) They're fresh off a three-week tour with the Head and the Heart, so Bryan John Appleby should be in fine, well-rehearsed form tonight at the Tractor, where they promise to play their latest album, Fire on the Vine, in its entirety. The album is an emotional roller coaster. There are weeping strings, persistent piano that hits like tiny raindrops, and sad lyrics about watching people drown. Yikes! Thankfully, there's some feel-good folk vibes, too, to even things out. Be sure to arrive in time to see both Shenandoah Davis and Pollens. Davis's imaginative compositions come from a fearlessness that could only exist after several years of classical training—you have to know the rules to break the rules, after all. And Pollens' ability to use layers of harmonizing voices like they're some kind of percussion instrument makes my head spin with dizzying delight.