Chris Willman Senior Music Writer and Chief Music Critic What does “going country” mean to Beyoncé — musically speaking? That’s a mystery that really had to wait until this week to be solved. We’d already picked up a good idea of what country means to her culturally, in her few public statements in advance of “Act II: Cowboy Carter,” amplified in the one trillion thinkpieces published during the last two months, many of which really did help spur a vital conversation about Black exclusion and reclamation in one of America’s most important indigenous artforms.