Hanging around the green room below the Beachland Ballroom, Matt Hectorne seems at his most content talking church music and his Mississippi upbringings when the conversation comes to a halt and a smile breaks behind a grizzly beard. “‘I’ll Fly Away,’” he points upstairs in approval to the Womack Family Band’s psychedelic rendition of the spiritual standard taking place on stage that’s echoing through the floor. In 20 minutes he’ll take the stage himself for the last time with Humble Home. In five months he’ll move to Nashville.

For a boy who grew up in a small suburb of Memphis immersed in a church of country and gospel vintage lore, a Southern homecoming marks the past year as a return to the roots. With a contributing cast of musicians he released two EPs, The Family Tree and Your Light My Dark, …