Memphis was also home to Sun Records, where musicians such as Elvis Presley, Johnny Cash, Carl Perkins, Jerry Lee Lewis, Roy Orbison, and Charlie Rich began their recording careers, and where rock and roll took shape in the 1950s.
The 1927 Victor recording sessions in Bristol generally mark the beginning of the country music genre, and the rise of the Grand Ole Opry in the 1930s helped make Nashville the center of the country music recording industry. "
source: Wikipedia
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