Bloodlines don’t run much deeper than those of Hank 3. The grandson of country music godfather Hank Williams and son of Hank Jr., Hank the Third is practically country royalty. So he could be forgiven for simply following in the dust-booted footsteps of his forbears. And when the mood strikes him, he does play some classically inspired twang, as on his 2013 double album Brothers of the 4X4. But Hank 3’s real passion is “hellbilly,” a slobbering fusion of country, punk and metal that goes places dear ol’ dad — not mention granddad — would likely never have imagined. Hank 3 plays the Higher Ground Ballroom this Sunday, June 15.