Portland’s own rabble-rousing troubadour Kory Quinn is one of the hardest-working musicians in the folksinging business. He’s played incalculable shows in Oregon, books his own US and international tours, and has put out so many albums and EPs that even he has lost count. His songs have the kind of anthemic quality that, like Woody Guthrie’s, are neither defined nor constrained by passing fads. Though many folk and Americana singers of recent vintage sing songs about train-ridin’, whiskey-drinkin’, or good ol’ American insubordination, Quinn has committed himself fully toward this life, and tonight he celebrates the release of his new EP, Black Gold Blues. For his backing band, the Quintessentials, Quinn has assembled a veritable wrecking crew, with David Lipkind on harmonica, Taylor Kingman on guitar, Matt Cadenelli and Ben Nugent on drums, Jason Montgomery on lap- and pedal-steel, and Lewi Longmire on bass. With songs addressing wage inequality, the exploitation of the poor, police brutality, and, in the title track, our nation’s dependence of fossil fuel, Black Gold Blues is Quinn’s most front-to-back political statement yet, and it comes not a moment too soon. SANTI ELIJAH HOLLEY