Black country music has existed for decades; according to songwriter, educator and novelist Alice Randall, its recorded origins go back to DeFord Bailey's 1927 harmonica performance of "Pan American Blues" at the Grand Ole Opry in Nashville. Now, its time has come — thanks to Beyoncé's "Texas Hold 'Em, which debuted at the top of the country charts last month. Vox takes a look at the century of country that led to "Cowboy Carter."
