7Horse began as a hypothetical: What if, longtime band mates Joie Calio and Phil Leavitt thought, we bury our musical past and see if we can discover rock ’n’ roll’s Ground Zero?

That question having been explored in bold fashion on their 2011 debut “Let the 7Horse Run,” the blues duo returns with an even deeper sense of purpose on the follow-up, “Songs for a Voodoo Wedding”. The larger question: What if the mission were not to locate rock ’n’ roll’s chewy center, but to find and channel their own personal identities?