Hip hop music (also referred to as rap or rap music) is a style of popular music. It is made up of two main components: rapping (MCing) and DJing (audio mixing and scratching). Along with breakdancing and graffiti (tagging) these are the four elements of hip hop, a cultural movement that was initiated by inner-city youth (mostly minorities such as African Americans and Latinos) in New York City in the early 1970s.
Typically, hip hop music consists of one or more rappers who tell semi-autobiographic tales, often relating to a fictionalized counterpart, in an intensely rhythmic lyrical form making abundant use of techniques like assonance, alliteration, and rhyme. The rapper is accompanied by an instrumental track, usually referred to as a "beat", performed by a DJ, created by a producer, or one or more instrumentalists. This beat is often created using a sample of the percussion break of another song, usually a funk, rock, or soul recording. In addition to the beat other sounds are often sampled, synthesized, or performed. Sometimes a track can be instrumental, as a showcase of the skills of the DJ or producer.
Hip hop began in New York City when DJs began isolating the percussion break from funk and disco songs. The early role of the MC was to introduce the DJ and the music and to keep the audience excited. MCs began by speaking between songs, giving exhortations to dance, greetings to audience members, jokes and anecdotes. Eventually this practice became more stylized and became known as rapping. By 1979 hip hop had become a commercially popular music genre and began to enter the American mainstream. In the 1990s, a form of hip hop called gangsta rap became a major part of American music, causing significant controversy over lyrics which were perceived as promoting violence, promiscuity, drug use and misogyny. Nevertheless, by the beginning of the 2000s, hip hop was a staple of popular music charts and was being performed in many styles across the world.
The terms rap and rap music are often used to describe hip hop music; the terms rap music and hip hop music are generally synonymous, although rap music is usually not used to describe hip hop songs without vocals. Hip hop music is also erroneously used at times to describe related genres of music, such as contemporary R&B, which are primarily sung; while singing is commonly present in hip hop songs, the main vocal (assuming there are vocals) is almost always rapped.
Hip hop is a cultural movement, of which music is a part (as are graffiti and breakdancing). The music is itself composed of two parts, rapping, the delivery of swift, highly rhythmic and lyrical vocals, and DJing, the production of instrumentation either through sampling, instrumentation, turntablism or beatboxing. Another important factor of hip hop music is the fashion that originated along with the music. The fashion was a representation of the music.
Beats (though not necessarily raps) in hip hop are almost always in 4/4 time. At its rhythmic core, hip hop swings: instead of a straight 4/4 count (pop music; rock 'n' roll; etc.), hip hop is based on an anticipated feel somewhat similar to the "swing" emphasis found in jazz percussion. Like the triplet emphasis in swing, hip hop's rhythm is subtle, rarely written as it sounds (4/4 basic; the drummer adds the hip hop interpretation) and is often played in an almost "late" or laid back way.
This style was innovated predominantly in soul and funk music, where beats and thematic music were repeated for the duration of tracks. In the 1960s and 1970s, James Brown (known as The Godfather of Soul) talked, sang, and screamed much as MCs do today. This musical style provides the perfect platform for MCs to rhyme. Hip hop music generally caters to the MC for this reason, amplifying the importance of lyrical and delivering prowess.
Instrumental hip hop is perhaps the lone exception to this rule. In this hip hop subgenre, DJs and producers are free to experiment with creating instrumental tracks. While they may mix in sampled rap vocals, they are not bound by traditional hip hop format.
DJ Premier, a popular and influential hip hop producer and DJ from New York.The instrumentation of hip hop derives from disco, funk, and R&B, both in the sound systems and records sampled and session musicians and their instrumentation used. Disco and club DJs' use of mixing originated from the need to have continuous music and thus smooth transitions between tracks, while in hip hop Kool DJ Herc originated the practice of isolating and extending only the break, basically short percussion solo interludes, by mixing between two copies of the same record, as this was, according to Afrika Bambaataa, the "certain part of the record that everybody waits for -- they just let their inner self go and get wild." (Toop, 1991) James Brown, Bob James, and Parliament -- among many others -- have long been popular sources for breaks. Over this one could and did add instrumental parts from other records, frequently as horn punches (ibid). Thus the instrumentation of early sampled or sound system-based hip hop is the same as funk, disco, or rock: vocals, guitar, keyboards, bass, drums and percussion.
Although original hip hop music consisted solely of the DJ's breakbeats and other vinyl record pieces, the advent of the drum machine allowed hip hop musicians to develop partially original scores. Drum set sounds could be played either over the music from vinyl records or by themselves. The importance of quality drum sequences became the most important focus of hip hop musicians because these rhythms (beats) were the most danceable part. Consequently, drum machines were equipped to produce strong kick sounds. This helped emulate the very well-engineered drum solos on old funk, soul and rock albums from the late 1960s and early to mid 1970s. Drum machines had a limited array of predetermined sounds, including hi-hats, snares, toms, and kick drums.
The introduction of the sampler changed the way hip hop was produced. A sampler can reproduce small sound clips from any input device, such as a turntable. Producers were able to sample familiar drum patterns. More importantly, they could sample a variety of instruments to play along with their drums. Hip hop had finally gathered its complete band.
Many producers and listeners pride certain records for being hip hop lore, the source of samples and breaks. To this day, producers use arcane equipment to replicate the same rough sound used in older records. This lends credibility to the records and serves as a historical reminder to the listeners of hip hop's origins.
For more details on this topic, see History of hip hop music.
Hip hop music can be divided into three eras. The old school hip hop era, from 1970 to 1984, spanned from the beginning of hip hop until its emergence into the mainstream. The golden age of hip hop, from 1985 to 1993, consolidated the sounds of the East Coast and the West Coast and transitioned into the modern era with the rise of gangsta rap and G-funk. The Modern era of hip hop, from 1993 to the present day, saw hip hop music becoming one of the most popular and successful forms of American music.