“In the first 75 years of Carnegie Hall being in operation, country music was an intermittent guest in the hallowed hall. In March 1966, however, a country band from Bakersfield, California, took to Carnegie Hall’s stages at the peak of their powers, as only the second country band to headline a show there, and ultimately released — outside of At Folsom Prison — the most important live country album ever. An album that proved many things between its two sides: that country music had an audience around the world already, and that the artist behind the album’s gamble on himself and his sound proved that you didn’t need to go to Nashville and sell out to sell big. With Carnegie Hall Concert, Buck Owens and His Buckaroos entered the pantheon of country music, becoming part of its very fiber...