AUSTIN, Texas — In the course of evolving from loose assemblage to world-class rock ’n’ roll outfit, the Band of Heathens has built a potent body of recorded work that’s won the Austin, Texas ensemble a fiercely loyal fan base and a reputation as one of its hometown’s most vital musical resources. BoH is also known as one of America’s hardest-working touring acts, while revealing a musical and lyrical depth that consistently enriches an infectious songcraft.