In April, Mike Mangione & the Union brought a New York rock club to the Deep South with foot-stomping rhythms, soaring strings and ethereal vocals. Whether it was with a whisper or a growl, they grabbed every ear. Averaging 100 dates a year, including house concerts, the band formed when the Mangione brothers — frontman Mike and guitarist Tom — began playing around Chicago and Wisconsin. While touring, a friendly soundman and upright bass player joined before the band added a percussionist, cellist and violinist. The act’s music has been played on NPR and Milwaukee radio, where it’s been nominated for band and album of the year, and Sugarland’s Kristian Bush has expressed interest in working with the outfit. This is no surprise to co-manager Eric Elwell, who says the band appeals to acoustic and folk fans. “It’s very melodic and it’s got so much soul to it,” he says. The group’s debut, “Tenebrae,” peaked at No. 9 on the Euro-Americana chart in Europe. The six-piece will release its third LP, “Red-Winged Blackbird Man,” on Sept. 3. On the title track, Mangione channels Bob Dylan and Howlin’ Wolf for a bluesy romp that showcases its soulful Americana. The set is produced by Grammy Award-nominated Bo Ramsey (Lucinda Williams), who saw the band live and understood what it wanted to capture. “I call it ‘sonic bumper bowling,'” Mangione says.