He might be a former member of the Drive-By Truckers and a solo artist for a decade with six highly rated albums under his belt, but the past couple of years have undeniably seen Jason Isbell’s stock rise. The buzz has practically become deafening as people first fell in love with his contemporary take on alt-country and Southern rock and then went back to delve into his previous work. Now, similar-minded musicians such as Samantha Fish are citing Isbell as an influence. This year’s The Nashville Sound album sees his band, the 400 Unit, get top billing alongside the man himself, and that’s carried over into the tour. It’s significant, too: As the Drive-By Truckers days prove, Isbell produces some of his best work when collaborating.