Jazz is a music genre that originated at the beginning of the 20th century in African American communities in the Southern United States from a confluence of African and European music traditions. From its early development until the present, jazz has incorporated music from 19th and 20th century American popular music. Its West African pedigree is evident in its use of blue notes, improvisation, polyrhythms, syncopation, and the swung note.
The word "jazz" (in early years also spelled "jass") began as a West Coast slang term and was first used to refer to music in Chicago in about 1915.
From its beginnings in the early 20th century jazz has spawned a variety of subgenres: New Orleans Dixieland dating from the early 1910s, big band-style swing from the 1930s and 1940s, bebop from the mid-1940s, a variety of Latin jazz fusions such as Afro-Cuban and Brazilian jazz, free jazz from the 1950s and 1960s, jazz fusion from the 1970s, acid jazz from the 1980s (which added funk and hip-hop influences), and Nujazz in the 1990s. As the music has spread around the world it has drawn on local national and regional musical cultures, its aesthetics being adapted to its varied environments and giving rise to many distinctive styles.
Jazz can be very hard to define because it spans from Ragtime waltzes to 2000s-era fusion. Attempts have been made to define jazz from the perspective of other musical traditions—using the point of view of European music history or African music for example—but jazz critic Joachim Berendt argues that all such attempts are unsatisfactory. One way to get around the definitional problems is to define the term "jazz" more broadly. Berendt defines jazz as a "form of art music which originated in the United States through the confrontation of blacks with European music"; he argues that jazz differs from European music in that jazz has a "special relationship to time, defined as 'swing'", "a spontaneity and vitality of musical production in which improvisation plays a role"; and "sonority and manner of phrasing which mirror the individuality of the performing jazz musician".
Travis Jackson has also proposed a broader definition of jazz which is able to encompass all of the radically different eras: he states that it is music that includes qualities such as "swinging", improvising, group interaction, developing an 'individual voice', and being 'open' to different musical possibilities". Krin Gabbard claims that “jazz is a construct” or category that, while artificial, still is useful to designate “a number of musics with enough in common to be understood as part of a coherent tradition”.
While jazz may be difficult to define, improvisation is clearly one of its key elements. Early blues was commonly structured around a repetitive call-and-response pattern, a common element in the African American oral tradition. A form of folk music which rose in part from work songs and field hollers of rural Blacks, early blues was also highly improvisational. These features are fundamental to the nature of jazz. While in European classical music elements of interpretation, ornamentation and accompaniment are sometimes left to the performer's discretion, the performer's primary goal is to play a composition as it was written.
In jazz, however, the skilled performer will interpret a tune in very individual ways, never playing the same composition exactly the same way twice. Depending upon the performer's mood and personal experience, interactions with fellow musicians, or even members of the audience, a jazz musician/performer may alter melodies, harmonies or time signature at will. European classical music has been said to be a composer's medium. Jazz, however, is often characterized as the product of egalitarian creativity, interaction and collaboration, placing equal value on the contributions of composer and performer, 'adroitly weigh[ing] the respective claims of the composer and the improviser'.
In New Orleans and Dixieland jazz, performers took turns playing the melody, while others improvised countermelodies. By the swing era, big bands were coming to rely more on arranged music: arrangements were either written or learned by ear and memorized—many early jazz performers could not read music. Individual soloists would improvise within these arrangements. Later, in bebop the focus shifted back towards small groups and minimal arrangements; the melody (known as the "head") would be stated briefly at the start and end of a piece but the core of the performance would be the series of improvisations in the middle. Later styles of jazz such as modal jazz abandoned the strict notion of a chord progression, allowing the individual musicians to improvise even more freely within the context of a given scale or mode. The avant-garde and free jazz idioms permit, even call for, abandoning chords, scales, and rhythmic meters.
Prohibition in the United States (from 1920 to 1933) banned the sale of alcoholic drinks, resulting in illicit speakeasies becoming lively venues of the "Jazz Age", an era when popular music included current dance songs, novelty songs, and show tunes. Jazz started to get a reputation as being immoral and many members of the older generations saw it as threatening the old values in culture and promoting the new decadent values of the Roaring 20s. Professor Henry Van Dyck of Princeton University wrote “...it is not music at all. It’s merely an irritation of the nerves of hearing, a sensual teasing of the strings of physical passion.”
Even the media began to denigrate jazz. The New York Times took stories and altered headlines to pick at Jazz. For instance, villagers used pots and pans in Siberia to scare off bears, and the newspaper stated that it was Jazz that scared the bears away. Another story claims that Jazz caused the death of a celebrated conductor. The actual cause of death was a fatal heart attack (natural cause). From 1919 Kid Ory's Original Creole Jazz Band of musicians from New Orleans played in San Francisco and Los Angeles where in 1922 they became the first black jazz band of New Orleans origin to make recordings. However, the main centre developing the new "Hot Jazz" was Chicago, where King Oliver joined Bill Johnson. That year also saw the first recording by Bessie Smith, the most famous of the 1920s blues singers.
Bix Beiderbecke formed The Wolverines in 1924. Also in 1924 Louis Armstrong joined the Fletcher Henderson dance band as featured soloist for a year, then formed his virtuosic Hot Five band, also popularizing scat singing. Jelly Roll Morton recorded with the New Orleans Rhythm Kings in an early mixed-race collaboration, then in 1926 formed his Red Hot Peppers. There was a larger market for jazzy dance music played by white orchestras, such as Jean Goldkette's orchestra and Paul Whiteman's orchestra. In 1924 Whiteman commissioned Gershwin's Rhapsody in Blue, which was premièred by Whiteman's Orchestra. Other influential large ensembles included Fletcher Henderson's band, Duke Ellington's band (which opened an influential residency at the Cotton Club in 1927) in New York, and Earl Hines's Band in Chicago (who opened in The Grand Terrace Cafe there in 1928). All significantly influenced the development of big band-style swing jazz.
