Music history of the United States in the 1950s blues and gospel music; with country and western and Pop. In 1951, Cleveland, Ohio disc jockey Alan Freed began playing rhythm and blues music for a multi-racial audience, and is credited with first using the phrase "rock and roll" to describe the music, though the terms "rocking" and "rolling" were being used in boogie-woogie and religious music for decades before that. The 1950s saw the growth in popularity of the electric guitar (developed and popularized by Les Paul). Paul's hit records like "How High the Moon," and "The World Is Waiting for the Sunrise," helped lead to the development of
Origins of rock and roll swing your partners" in "West Coast Blues", which in turn formed the basis of "Old Country Rock" by William Moore the following year. Also in 1927, traditional country musician Uncle Dave Macon, with his group the Fruit Jar Drinkers, recorded "Sail Away Ladies" with a refrain of "Don't she rock, daddy-o", and "Rock About My Saro Jane". Duke Ellington recorded "Rockin' in Rhythm" in 1928, and Robinson's Knights of Rest recorded "Rocking and Rolling" in 1930. In 1932, the phrase "rock and roll" was heard in the Hal Roach film "Asleep in the Feet". In 1934, the Boswell Sisters had