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'''Rock and roll''' ('''Rock music''') is an [[American]] music genre started in the early 1950s. It evolved from [[rhythm and blues]], [[blues music]] and [[country music]].
==Foundations of rock==
Rock is characterized by a strong back-beat, simple repeated phrases, and electrically amplified instrumentation such as [[guitars]].
==Instrumentation==
*[[Electric guitar]]
*[[Bass guitar]]
*[[Drum kit]]
*[[Keyboards]
*[[Piano]] ''(sometimes)''
==Rock sub-genres==
There are many genres of rock music, such as [[hard rock]], [[soft rock]], [[heavy metal]], [[country rock]], and many others.
==Worldwide popularity==
The popularity of rock music has spread worldwide. One place other than America where rock proved especially popular was [[Britain]], home to [[The Beatles]].
Some countries create their own version of rock, often adding lyrics of the singers' native country.
==Early rock pioneers==
*[[Chuck Berry]]
*[[Bo Diddley]]
*[[Little Richard]]
*[[Elvis Presley]]
*[[Roy Orbison]]
*[[Jerry Lee Lewis]]
*[[The Beach Boys]]
*[[The Beatles]]
==See also==
*[[Rhythm and blues]]
[[Category: Music]]