Evolution of music Pre-1930s Opera Origin: 14th century Italy Notable musicians: Luciano Pavarotti, Jose Carreras, Placido Domingo Popularity: Popular since the 14th century 1930s Gospel Origin: 20th century USA Notable musicians: Johnny Cash Popularity: Popular since the 1930s Jazz Origin: 1910s, New Orleans, Louisiana Notable musicians: Louis Armstrong, Miles Davis Popularity: Popular since the 1930s 1940s Blues Origin: 19th century USA Notable musicians: Billie Holliday, Ella Fitzgerald Popularity: Popular since the 1940s Soul Origin: 19th century USA Notable musicians: Etta James Popularity: Popular since the 1940s 1950s Doo-wop Origin: 1950s, USA Notable musicians: The Four Seasons Popularity: 1950s, revived in the 2000s Rock and roll Origin: 1940s, USA Notable musicians: Elvis Presley, Bill Haley, Johnny Cash, Roy Orbinson Popularity: 1950s, modernised into rock Country Origin: 20th century, North America Notable musicians: Rascal Flatts, Hank Williams Popularity...