Kinds of Music

Hip hop is a form of musical expression and artistic culture that originated in African-American communities during the late 1970s in New York City.[1] DJ Afrika Bambaataa outlined the four pillars of hip hop culture: MCing, DJing, breaking and graffiti writing.[2][3][4][5] Other elements include beatboxing.
Since its emergence in the South Bronx, hip hop culture has spread around the world.[6] Hip hop music first emerged with disc jockeys creating rhythmic beats by looping breaks (small portions of songs emphasizing a percussive pattern) on two turntables, more commonly referred to as sampling. This was later accompanied by "rap", a rhythmic style of chanting or poetry presented in 16 bar measures or time frames, and beatboxing, a vocal technique mainly used to imitate percussive elements of the music and various technical effects of hip hop DJ's. An original form of dancing and particular styles of dress arose among fans of this new music. These elements experienced considerable refinement and development over the course of the history of the culture.
The relationship between graffiti and hip hop culture arises from the appearance of new and increasingly elaborate and pervasive forms of the practice in areas where other elements of hip hop were evolving as art forms, with a heavy overlap between those who wrote graffiti and those who practiced other elements of the culture.
[edit] Etymology
The phrase hip hop is a combination two separate slang terms—"hip", used as African American Vernacular English (AAVE) as early as 1898, meaning current or in the know, and "hop", for the hopping movement.
Keith "Cowboy" Wiggins, a member of Grandmaster Flash and the Furious Five, has been credited with coining the term hip hop in 1978 while teasing a friend who had just joined the US Army, by scat singing the words "hip/hop/hip/hop" in a way that mimicked the rhythmic cadence of marching soldiers.[7] Cowboy later worked the "hip hop" cadence into a part of his stage...