Scratching
Overview
 
Scratching is a DJ or turntablist
Turntablism
Turntablism is the art of manipulating sounds and creating music using phonograph turntables and a DJ mixer.The word 'turntablist' was coined in 1995 by DJ Babu to describe the difference between a DJ who just plays records, and one who performs by touching and moving the records, stylus and mixer...

 technique used to produce distinctive sound
Sound
Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to be heard, or the sensation stimulated in organs of hearing by such vibrations.-Propagation of...

s by moving a vinyl record back and forth on a turntable
Phonograph
The phonograph record player, or gramophone is a device introduced in 1877 that has had continued common use for reproducing sound recordings, although when first developed, the phonograph was used to both record and reproduce sounds...

 while optionally manipulating the crossfader on a DJ mixer. While scratching is most commonly associated with hip hop music
Hip hop music
Hip hop music, also called hip-hop, rap music or hip-hop music, is a musical genre consisting of a stylized rhythmic music that commonly accompanies rapping, a rhythmic and rhyming speech that is chanted...

, since the late 1980s, it has been used in some styles of pop
Pop music
Pop music is usually understood to be commercially recorded music, often oriented toward a youth market, usually consisting of relatively short, simple songs utilizing technological innovations to produce new variations on existing themes.- Definitions :David Hatch and Stephen Millward define pop...

 and nu metal
Nu metal
Nu metal is a subgenre of heavy metal. It is a fusion genre which combines elements of heavy metal with other genres, including grunge and hip hop...

. Within hip hop culture, scratching is one of the measures of a DJ's skills, and there are many scratching competitions.
In recorded hip-hop songs, scratched hook
Hook (music)
A hook is a musical idea, often a short riff, passage, or phrase, that is used in popular music to make a song appealing and to "catch the ear of the listener". The term generally applies to popular music, especially rock music, hip hop, dance music, and pop. In these genres, the hook is often...

s often use portions of different rap songs.
Scratching was developed by early hip hop
Hip hop music
Hip hop music, also called hip-hop, rap music or hip-hop music, is a musical genre consisting of a stylized rhythmic music that commonly accompanies rapping, a rhythmic and rhyming speech that is chanted...

 DJs from New York
New York
New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

 such as Grand Wizard Theodore
Grand Wizard Theodore
Grand Wizzard Theodore , is an American hip hop DJ. He is widely credited as the inventor of scratching.Born Theodore Livingston in Bronx, New York, his brother, Mean Gene, was Theodore's mentor, and began teaching him DJing before Theodore was even a teen...

 and DJ Grandmaster Flash, who describes scratching as, "nothing but the back-cueing that you hear in your ear before you push it [the recorded sound] out to the crowd." (Toop, 1991).
 
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