When then-President Richard Nixon sat down at the piano on the stage of the Grand Old Opry in 1974, he was reinforcing a conservative, polemical wall of sound to help contain several decades of transformational popular music, from blues and jazz to rock & roll. Music was the last thing on his mind.

As part of his notorious race-based “southern strategy,” Nixon led the efforts of conservative elites to co-opt American country-western music. He got the idea from George Wallace’s 1968 campaign, which Wallace had filled with country stars like Hank Snow and Hank Williams Jr.