The turntable was not designed as a musical instrument. It was designed to play records. DJs transformed it into one — and in doing so, invented hip-hop, changed electronic music, and created an entirely new relationship between recorded sound and live performance.
THE ORIGIN
On August 11, 1973, Clive Campbell — known as DJ Kool Herc — held a party at 1520 Sedgwick Avenue in the South Bronx, New York. Using two turntables, he developed a technique called the 'merry-go-round' or breakbeat: he played the percussion break of a funk record on one turntable, then seamlessly switched to the same point on a second copy of the same record when the first break ended — extending the drum section indefinitely. This technique — using two turntables to create an uninterrupted rhythmic loop — is the foundational act of hip-hop music.
Grandmaster Flash developed Kool Herc's technique further, adding precise cueing (using headphones to pre-set the exact position of the record) and 'backspinning' (rotating the record backward by hand to return to the beginning of a break). These techniques transformed the turntable from a playback device into a performance instrument.
SCRATCHING
Scratching was discovered by Grand Wizzard Theodore in approximately 1975, reportedly by accident: moving a record back and forth under a needle produces a rhythmic scratching sound. Grand Mixer DXT brought scratching to global attention on Herbie Hancock's 'Rockit' (1983) — one of the first major hits built on the scratch, following Malcolm McLaren's 'Buffalo Gals' (1982). The scratch has since developed into an extensive vocabulary: the baby scratch, the transformer scratch, the flare, the crab — each a distinct rhythmic and tonal gesture.
THE EQUIPMENT
TURNTABLES: The Technics SL-1200 series (introduced 1972) became the DJ's standard instrument — its direct-drive motor provides the torque necessary for scratching and backspinning without damaging the drive belt. It remains in production and is considered the reference standard.
THE MIXER: A DJ mixer routes signals from multiple turntables or media players, with a crossfader that transitions between sources. The crossfader's response curve (sharp or gradual) profoundly affects scratching technique.
CDJs and DIGITAL: Pioneer's CDJ (CD player designed for DJing) became the club standard in the 2000s. Serato and Traktor software allow DJs to control digital libraries with vinyl records or controllers. The fundamental skills — beatmatching, mixing, reading a room — remain identical regardless of the technology.
BEATMATCHING: The core DJ skill is beatmatching — synchronizing the tempos of two records so they can be mixed without a rhythmic clash. Analog beatmatching (by ear, using the turntable's pitch control) is a learned skill taking months to develop. Digital tools can automate this — the debate about their use in competitive DJing is ongoing.
DJ CULTURE AND GENRES
Hip-hop DJing (turntablism) and electronic music DJing are distinct practices. In turntablism — practiced by DJ Shadow, DJ Premier, Q-Bert — the DJ creates music from recorded sounds. In club DJing — practiced by Frankie Knuckles (house), Larry Levan (garage), Jeff Mills (techno), Ricardo Villalobos (minimal) — the DJ curates a musical journey across multiple hours, managing energy, atmosphere, and the physical response of the crowd.
LEARNING TO DJ
Begin with: two turntables (or CDJs/controllers), a mixer, and headphones. Learn beatmatching by ear before relying on software. Study a genre deeply — its tempo ranges, its structure, its peaks and valleys. Record your mixes and listen critically. The technical skills can be learned in months; the musical intelligence needed to move a room takes years.
The DJ's role in music history extends far beyond the technical skills of the turntable. The development of DJ culture in New York, Chicago, Detroit, London, and Manchester during the 1970s and 1980s created new models of musical authorship, community, and economics that transformed the music industry. The DJ as curator and selector — choosing records that serve a crowd's energy arc across an evening — developed a form of musical intelligence that critics and theorists have only recently begun to analyze with the seriousness it deserves. The DJ's knowledge of a huge breadth of recorded music, the ability to read and respond to a crowd's responses in real time, and the structural thinking required to build sets that move through energy levels, genres, and tempos while maintaining coherence represents a form of musical mastery quite different from instrumental performance but no less demanding. The transition from vinyl DJing to digital tools — Serato, Traktor, Ableton Live — has expanded the DJ's technical possibilities while generating debates about authenticity and craft that mirror debates in every technology-intensive musical practice. The most enduring DJs — Larry Levan at Paradise Garage, Frankie Knuckles at the Warehouse, Carl Cox in his global appearances — have been distinguished not by their technical virtuosity alone but by their musical vision: the depth of their knowledge, the sophistication of their taste, and their ability to translate those qualities into shared communal experiences for the dancers who entrust their night to their selections. The DJ's art thus represents a genuinely new form of musical authorship appropriate to an age of recorded music: not the creation of new sounds from scratch but the curation, juxtaposition, and real-time orchestration of existing recordings into experiences that are greater than the sum of their parts — a form of musical creativity that has produced some of the most significant cultural events of the past fifty years. For the aspiring DJ, this means that technical mastery is inseparable from musical education: learning the history of the music you play, developing the listening skills to recognize what makes recordings work, and cultivating the social intelligence to read how music affects people are as essential as learning to beatmatch or phrase mix. The DJ who invests in both dimensions — technical craft and musical knowledge — is equipped to serve not just as an operator of equipment but as a genuine musical curator whose choices can transform how audiences understand and experience recorded music.