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A disc jockey (abbreviated D.J. or DJ) is a person who mixes recorded music for an audience. Originally, "disc" (sometimes spelled "disk", although this is now uncommon) referred to phonograph records, not the later compact discs. Today, the term includes all forms of music playback, no matter the medium.
There are several types of disc jockey. Radio DJs or radio personalities introduce and play music that is broadcast on AM, FM, shortwave, digital or internet radio stations. Club DJs select and play music in bars, nightclubs or discothèques, or at parties or raves, or even in stadiums. Hip hop DJs select and play music using multiple turntables to back up one or more MCs/rappers, perform turntable scratching to create percussive sounds, and are also often music producers who use turntablism and sampling to create backing instrumentals for new tracks. In reggae, the DJ (deejay) is a vocalist who raps, "toasts", or chats over pre-recorded rhythm tracks while the individual choosing and playing them is referred to as a selector. Mobile DJs travel with portable sound systems and play recorded music at a variety of events. Some mobile DJs also serve as the master of ceremonies or MC directing the attention of attendees, and maintaining a room-wide focus on what is included in the event's agenda. According to a 2012 study, there are approximately 1¼ million professional disc jockeys in the world.
The title "DJ" is also commonly used by DJs in front of their real names or adopted pseudonyms as a title to denote their profession and the music they play.
Club DJ equipment may consist of:
Other equipment could or can be added to the basic DJ setup (above), providing unique sound manipulations. Such devices include, but are not limited to:
Several techniques are used by DJs as a means to better mix and blend recorded music. These techniques primarily include the cueing, equalization and audio mixing of two or more sound sources. The complexity and frequency of special techniques depends largely on the setting in which a DJ is working. Radio DJs are less likely to focus on music-mixing procedures than club DJs, who rely on a smooth transition between songs using a range of techniques.
Club DJ turntable techniques include beatmatching, phrasing and slip-cueing to preserve energy on a dancefloor. Turntablism embodies the art of cutting, beat juggling, scratching, needle drops, phase shifting, back spinning and more to perform the transitions and overdubs of samples in a more creative manner (although turntablism is often considered a use of the turntable as a musical instrument rather than a tool for blending recorded music). Professional DJs may use harmonic mixing to choose songs that are in compatible musical keys.
Recent advances in technology in both DJ hardware and software can provide assisted or automatic completion of some traditional DJ techniques and skills. Examples include phrasing and beatmatching, which can be partially or completely automated by utilizing DJ software that performs automatic synchronization of sound recordings, a feature commonly labelled "sync". Most DJ mixers now include a beat-counter which analyzes the tempo of an incoming sound source and displays its tempo in beats per minute (BPM), which may assist with beatmatching analog sound sources.
In 1892, Emile Berliner began commercial production of his gramophone records, the first disc records to be offered to the public. In 1906, Reginald Fessenden transmitted the first audio radio broadcast in history also playing the first record, that of a contralto singing Handel's Largo from Xerxes.
The world's first radio disc jockey was Ray Newby, of Stockton, California. In 1909, at 16 years of age, Newby began regularly playing records on a small transmitter while a student at Herrold College of Engineering and Wireless, located in San Jose, California, under the authority of radio pioneer Charles "Doc" Herrold.
We used popular records at that time, mainly Caruso records, because they were very good and loud; we needed a boost... we started on an experimental basis and then, because this is novel, we stayed on schedule continually without leaving the air at any time from that time on except for a very short time during World War I, when the government required us to remove the antenna... Most of our programming was records, I'll admit, but of course we gave out news as we could obtain it...—Ray Newby, I've Got a Secret (1965)
By 1910, regular radio broadcasting had started to use "live" as well as prerecorded sound. In the early radio age, content typically included comedy, drama, news, music, and sports reporting. The on-air announcers and programmers would later be known as disc jockeys. In the 1920s, juke joints became popular as places for dancing and drinking to recorded jukebox music. In 1927, Christopher Stone became the first radio announcer and programmer in the United Kingdom, on the BBC radio station.
In 1935, American radio commentator Walter Winchell coined the term "disc jockey" (the combination of disc, referring to the disc records, and jockey, which is an operator of a machine) as a description of radio announcer Martin Block, the first announcer to become a star. While his audience was awaiting developments in the Lindbergh kidnapping, Block played records and created the illusion that he was broadcasting from a ballroom, with the nation’s top dance bands performing live. The show, which he called Make Believe Ballroom, was an instant hit. The term "disc jockey" appeared in print in Variety in 1941.
Prior to this, most music heard on radio was live; most radio stations had an orchestra or band on the payroll. The Federal Communications Commission also clearly favored live music, providing accelerated license approval to stations promising not to use any recordings for their first three years on the air. Many noted recording artists tried to keep their recorded works off the air by having their records labeled as not being legal for airplay. It took a Federal court ruling in 1940 to establish that a recording artist had no legal right to control the use of a record after it was sold.
In 1943, Jimmy Savile launched the world's first DJ dance party by playing jazz records in the upstairs function room of the Loyal Order of Ancient Shepherds in Otley, England. In 1947, he claims to have become the first DJ to use twin turntables for continuous play, and in 1958 became a radio DJ at Radio Luxembourg. Also in 1947, the Whiskey à Go-Go nightclub opened in Paris, France, considered to be the world's first commercial discothèque, or disco (deriving its name from the French word meaning a nightclub where the featured entertainment is recorded music rather than an on-stage band). Regine began playing on twin turntables there in 1953. Discos began appearing across Europe and the United States.
The postwar period coincided with the rise of the radio disc jockey as a celebrity separate from the radio station, also known as a "radio personality". In the days before station-controlled playlists, the DJ often followed their personal tastes in music selection. DJs also played a role in exposing rock and roll artists to large, national audiences. While at WERE (1300 AM) in Cleveland, Ohio, DJ Bill Randle was one of the first to introduce Elvis Presley to radio audiences in the northeastern U.S.
Notable U.S. radio disc jockeys of the period include Alan Freed, Wolfman Jack, Casey Kasem, and their British counterparts such as the BBC's Brian Matthew, Radio London's John Peel, and later in the 60s, Radio Caroline's Tony Blackburn.
Freed is commonly referred to as the "father of rock and roll" due to his promotion of the music and his introduction of the phrase "rock and roll" on radio in the early 1950s. Freed also made a practice of presenting music by African-American artists rather than cover versions by white artists on his radio program. Freed's career ended when it was shown that he had accepted payola, a practice that was highly controversial at the time, resulting in his being fired from his job at WABC.
In the 1950s, American radio DJs would appear live at "sock hops" and "platter parties" and assume the role of a human jukebox. They would usually play 45-rpm records, featuring hit singles on one turntable while talking between songs. In some cases, a live drummer was hired to play beats between songs to maintain the dance floor. In 1955, Bob Casey, a well-known "sock hop" DJ, brought the two-turntable system to the U.S. Throughout the 1950s, payola continued to be a problem and one result of the payola scandal was tighter control of the music by station management. The Top 40 format emerged, where popular songs are played repeatedly.
In the late 1950s, sound systems, a new form of public entertainment, were developed in the ghettos of Kingston, Jamaica. Promoters, who called themselves DJs, would throw large parties in the streets that centered on the disc jockey, called the "selector," who played dance music from large, loud PA systems and bantered over the music with a boastful, rhythmic chanting style called "toasting". These parties quickly became profitable for the promoters, who would sell admission, food, and alcohol, leading to fierce competition between DJs for the biggest sound systems and newest records.
In the mid-1960s, nightclubs and discothèques continued to grow in Europe and the United States. Specialized DJ equipment, such as Rudy Bozak's classic CMA-10-2DL mixer, began to appear on the market. In 1969, American club DJ Francis Grasso popularized beatmatching at New York's Sanctuary nightclub. Beatmatching is the technique of creating seamless transitions between records with matching beats, or tempos. Grasso also developed slip-cuing, the technique of holding a record still while the turntable is revolving underneath, releasing it at the desired moment to create a sudden transition from the previous record. (This technique had long been used in radio.)
By 1968, the number of dance clubs started to decline; most American clubs either closed or were transformed into clubs featuring live bands. Neighborhood block parties that were modelled after Jamaican sound systems gained popularity in Europe and in the boroughs of New York City.
In 1973, Jamaican-born DJ Kool Herc, widely regarded as the "father of hip-hop culture," performed at block parties in his Bronx neighborhood and developed a technique of mixing back and forth between two identical records to extend the rhythmic instrumental segment, or break. Turntablism, the art of using turntables not only to play music but to manipulate sound and create original music, began to develop.
In 1974, Technics released the first SL-1200 turntable, which evolved into the SL-1200 MK2 in 1979—which, as of the early-2010s, remains an industry standard for DJing. In 1974, German electronic music band Kraftwerk released the 22-minute song "Autobahn," which takes up the entire first side of that LP. Years later, Kraftwerk would become a significant influence on hip-hop artists such as Afrika Bambaataa and house music pioneer Frankie Knuckles. During the mid-1970s, Hip-hop music and culture began to emerge, originating among urban African Americans and Latinos in New York City. The four main elements of Hip Hop culture are graffiti, DJing, breakdancing, and MCing (rapping).
In the mid-1970s, the soul-funk blend of dance pop known as disco took off in the mainstream pop charts in the United States and Europe, causing discothèques to experience a rebirth. Unlike many late-1960s clubs, which featured live bands, discothèques used the DJ's selection and mixing of records as the entertainment. In 1975, record pools began, providing disc jockeys access to newer music from the industry in an efficient method.
In 1975, hip-hop DJ Grand Wizard Theodore invented the scratching technique by accident. In 1976, American DJ, editor, and producer Walter Gibbons remixed "Ten Percent" by Double Exposure, one of the earliest commercially released 12″ singles (aka "maxi-single"). In 1979, the Sugar Hill Gang released "Rapper's Delight", the first hip-hop record to become a hit. It was also the first real breakthrough for sampling, as the bassline of Chic's "Good Times" laid the foundation for the song.
In 1977, Saratoga Springs, NY disc jockey Tom L. Lewis introduced the Disco Bible (later renamed Disco Beats), which published hit disco songs listed by beats per minute (tempo), as well as by either artist or song title. Billboard ran an article on the new publication, and it went national relatively quickly. The list made it easier for beginning DJs to learn how to create seamless transitions between songs without dancers having to change their rhythm on the dance floor. Today, DJs can find the beats per minute of songs in the BPM List.
In 1981, the cable television network MTV was launched, originally devoted to music videos, especially popular rock music. The term "video jockey", or VJ, was used to describe the fresh-faced youth who introduced the music videos. In 1982, the demise of disco in the mainstream by the summer of 1982 forced many nightclubs to either close or change entertainment styles, such as by providing MTV-style video dancing or live bands. Released in 1982, the song "Planet Rock" by DJ Afrika Bambaataa was the first hip-hop song to feature synthesizers. The song melded electro hip-hop beats influenced by Yellow Magic Orchestra with the melody from Kraftwerk's "Trans-Europe Express." In 1982, the Compact Disc reached the public market in Asia, and early the following year in other markets. This event is often seen as the "Big Bang" of the digital audio revolution.
In the early 1980s, NYC disco DJ Larry Levan, known for his eclectic mixes, gained a cult following, and the Paradise Garage, the nightclub at which he spun, became the prototype for the modern dance club where the music and the DJ were showcased. Around the same time, the disco-influenced electronic style of dance music called house music emerged in Chicago. The name was derived from the Warehouse Club in Chicago, where resident DJ Frankie Knuckles mixed old disco classics and Eurosynth pop. House music is essentially disco music with electronic drum machine beats. The common element of most house music is a 4/4 beat generated by a drum machine or other electronic means (such as a sampler), together with a solid (usually also electronically generated) synth bassline. In 1983, Jesse Saunders released what some consider the first house music track, "On & On." The mid-1980s also saw the emergence of New York Garage, a house music hybrid that was inspired by Levan's style and sometimes eschewed the accentuated high-hats of the Chicago house sound.
During the mid-1980s, techno music emerged from the Detroit club scene. Being geographically located between Chicago and New York, Detroit techno artists combined elements of Chicago house and New York garage along with European imports. Techno distanced itself from disco's roots by becoming almost purely electronic with synthesized beats. In 1985, the Winter Music Conference started in Fort Lauderdale Florida and became the premier electronic music conference for dance music disc jockeys.
In 1985, TRAX Dance Music Guide was launched by American Record Pool in Beverly Hills. It was the first national DJ-published music magazine, created on the Macintosh computer using extensive music market research and early desktop publishing tools. In 1986, "Walk This Way", a rap/rock collaboration by Run DMC and Aerosmith, became the first hip-hop song to reach the Top 10 on the Billboard Hot 100. This song was the first exposure of hip-hop music, as well as the concept of the disc jockey as band member and artist, to many mainstream audiences. In 1988, DJ Times magazine was first published. It was the first US-based magazine specifically geared toward the professional mobile and club DJ.
During the early 1990s, the rave scene built on the acid house scene. The rave scene changed dance music, the image of DJs, and the nature of promoting. The innovative marketing surrounding the rave scene created the first superstar DJs who established marketable "brands" around their names and sound. Some of these celebrity DJs toured around the world and were able to branch out into other music-related activities. During the early 1990s, the Compact Disc surpassed the gramophone record in popularity, but gramophone records continued to be made (although in very limited quantities) into the 21st century—particularly for club DJs and for local acts recording on small regional labels.
In 1991, Mobile Beat magazine, geared specifically toward mobile DJs, began publishing. In 1992, MPEG which stands for the Moving Picture Experts Group, released The MPEG-1 standard, designed to produce reasonable sound at low bit rates. The lossy compression scheme MPEG-1 Layer-3, popularly known as MP3, later revolutionized the digital music domain. In 1993, the first internet "radio station", Internet Talk Radio, was developed by Carl Malamud. Because the audio was relayed over the internet, it was possible to access internet radio stations from anywhere in the world. This made it a popular service for both amateur and professional disc jockeys operating from a personal computer.
In 1998, the first MP3 digital audio player was released, the Eiger Labs MPMan F10. Final Scratch debuted at the BE Developer Conference, marking the first digital DJ system to allow DJs control of MP3 files through special time-coded vinyl records or CDs. While it would take sometime for this novel concept to catch on with the "die hard Vinyl DJs", This would soon become the first step in the new Digital DJ revolution. Manufacturers joined with computer DJing pioneers to offer professional endorsements, the first being Professor Jam (aka William P. Rader), who went on to develop the industry's first dedicated computer DJ convention and learning program, the "CPS (Computerized Performance System) DJ Summit", to help spread the word about the advantages of this emerging technology.
In 1999, Shawn Fanning released Napster, the first of the massively popular peer-to-peer file sharing systems. During this period, the AVLA (Audio Video Licensing Agency) of Canada announced an MP3 DJing license, administered by the Canadian Recording Industry Association. This meant that DJs could apply for a license giving them the right to perform publicly using music stored on a hard drive, instead of having to cart their whole CD collections around to their gigs.
During the start of the new century, the introduction of advances in technology made it possible for new sounds to be developed. The introduction of the Pioneer SVM-1000 Audio and Video Mixer and other high tech digital sound mixers made a whole new culture of disco DJ integration. The appearance of games like DJ hero gave birth to the scratch-off contests. DJ Vs. DJ battles imitating the events on the game gave the DJ industry a more competitive phase. The DJ industry has become increasingly about the atmosphere that goes along with a performance. Now not only does the DJ show deal with music and mixing but also lights and effect go along with it.
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