Rock & Pop (B)
Rock and roll (also spelled rock 'n' roll, especially in its first decade), is a genre of music that emerged as a defined musical style in the Southern United States in the 1950s, and quickly spread to the rest of the country, and the world (rhythm sample). more...
It later evolved into the various sub-genres of what is now called simply 'rock'. As a result, "rock and roll" now has two distinct meanings: either traditional rock and roll in the 1950s style, or later rock and even pop music which may be very far from traditional rock and roll (rhythm sample). From the late 1950s to the late 1990s rock was perhaps the most popular form of music in the western world. Rock 'n' roll is played with an electric guitar, a bass guitar, a drum set, and maybe a piano (or keyboard). In the early style of rock and roll, early 1950's, saxophone was the lead instrument, replaced by guitar in the late 50's.
Precursors and origins
Rock and roll emerged as a defined musical style in America in the 1950s, though elements of rock and roll can be heard in rhythm and blues records as far back as the 1920s. Early rock and roll combined elements of blues, boogie woogie, jazz and rhythm and blues, and is also influenced by traditional Appalachian folk music, gospel, Hillbilly and country and western. Going back even further, rock and roll can trace a foundational lineage to the old Five Points
Read more at Wikipedia.org