JaZZ,,

Jazz is an original American musical art form which originated around the beginning of the 20th century in African American communities in the Southern United States out of a confluence of African and European music traditions. The use of blue notes, call-and-response, improvisation, polyrhythms, syncopation and the swung note of ragtime are characteristics traceable back to jazz's West African pedigree.^[1] During its early development, jazz also incorporated music from from 19th and 20th century American popular music based on European music traditions.^[2] The origins of the word "jazz," which was first used to refer to music in about 1915, are uncertain; for the origin and history, see Jazz (word).

Jazz has, from its early 20th century inception, spawned a variety of subgenres, from 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 from the 1950s and 1960s, jazz-rock fusion from the 1970s and later developments such as acid jazz.

As the term "jazz" has long been used for a wide variety of styles, a comprehensive definition including all varieties is elusive. While some enthusiasts of certain types of jazz have argued for narrower definitions which exclude many other types of music also commonly known as "jazz", jazz musicians themselves are often reluctant to define the music they play. Duke Ellington summed it up by saying, "It's all music." Some critics have even stated that Ellington's music was not in fact jazz, as by its very definition, according to them, jazz cannot be orchestrated. On the other hand Ellington's friend Earl Hines' s 20 solo "transformative versions" of Ellington compositions (on Earl Hines Plays Duke Ellington recorded in the 1970s) were described by Ben Ratliff, the New York Times jazz critic, as "as good an example of the jazz process as anything out there."^[29]

There have long been debates in the jazz community over the definition and the boundaries of “jazz.” In the mid-1930s, New Orleans jazz lovers criticized the "innovations" of the swing era as being contrary to the collective improvisation they saw as essential to "true" jazz. Through the 1940s, '50s and '60s, traditional jazz enthusiasts and Bop enthusiasts criticized each other, often arguing that the other style was somehow not "real" jazz. Although alteration or transformation of jazz by new influences has often been initially criticized as a “debasement,” Andrew Gilbert argues that jazz has the “ability to absorb and transform influences” from diverse musical styles^[30].

Commercially-oriented or 'popular' music-influenced forms of jazz have both long been criticized, at least since the emergence of Bop. Traditional jazz enthusiasts have dismissed Bop, the 1970s jazz fusion era [and much else] as a period of commercial debasement of the music. However, according to Bruce Johnson, jazz music has always had a "tension between jazz as a commercial music and an art form" ^[31].

Gilbert notes that as the notion of a canon of jazz is developing, the “achievements of the past” may be become "…privileged over the idiosyncratic creativity...” and innovation of current artists. Village Voice jazz critic Gary Giddins argues that as the creation and dissemination of jazz is becoming increasingly institutionalized and dominated by major entertainment firms, jazz is facing a "...perilous future of respectability and disinterested acceptance." David Ake warns that the creation of “norms” in jazz and the establishment of a “jazz tradition” may exclude or sideline other newer, avant-garde forms of jazz^[31].

One way to get around the definitional problems is to define the term “jazz” more broadly. According to Krin Gabbard “jazz is a construct” or category that, while artificial, still is useful to designate “a number of musics with enough in common part of a coherent tradition”. Travis Jackson also defines jazz in a broader way by stating that it is music that includes qualities such as “ 'swinging', improvising, group interaction, developing an 'individual voice', and being 'open' to different musical possibilities

In the 1980s, the jazz community shrank dramatically and split. A mainly older audience retained an interest in traditional and "straight-ahead" jazz styles. Wynton Marsalis strove to create music within what he believed was the tradition, creating extensions of small and large forms initially pioneered by such artists as Louis Armstrong and Duke Ellington.

In the early 1980s, a lighter commercial form of jazz fusion called pop fusion or "smooth jazz" became successful and garnered significant radio airplay. Smooth jazz saxophonists include Grover Washington, Jr., Kenny G and Najee. Smooth jazz received frequent airplay with more straight-ahead jazz in quiet storm time slots at radio stations in urban markets across the U.S., helping to establish or bolster the careers of vocalists including Al Jarreau, Anita Baker, Chaka Khan, and Sade.

In the late 1980s and early 1990s, several subgenres fused jazz with popular music, such as Acid jazz, nu jazz, and jazz rap. Acid jazz and nu jazz combined elements of jazz and modern forms of electronic dance music. While nu jazz is influenced by jazz harmony and melodies, there are usually no improvisational aspects. Jazz rap fused jazz and hip-hop. Gang Starr recorded "Words I Manifest," "Jazz Music," and "Jazz Thing", sampling Charlie Parker and Ramsey Lewis, and collaborating with Branford Marsalis and Terence Blanchard. Beginning in 1993, rapper Guru's Jazzmatazz series used jazz musicians during the studio recordings.

The more experimental and improvisational end of the spectrum includes Norwegian pianist Bugge Wesseltoft and American bassist Christian McBride. Toward the more pop or dance music end of the spectrum are St Germain who incorporates some live jazz playing with house beats. Radiohead, Björk, and Portishead have also incorporated jazz influences into their music.

In the 2000s, straight-ahead jazz continues to appeal to a core of listeners. Well-established jazz musicians whose careers span decades, such as Chick Corea, Jack DeJohnette, Bill Frisell, Charlie Haden, Herbie Hancock, Roy Haynes, Keith Jarrett, Wynton Marsalis, John McLaughlin, Pat Metheny, Paquito D'Rivera, Sonny Rollins, John Scofield, Wayne Shorter, John Surman, Stan Tracey and Jessica Williams continue to perform and record. Some innovative jazz artists to emerge in the 1990s and 2000s with a wide following include Brad Mehldau, Jason Moran, Kurt Rosenwinkel, Robert Glasper, Brian Blade, Stefon Harris, Roy Hargrove, Aaron Goldberg, Vijay Iyer, Chris Potter, Joshua Redman, and Terence Blanchard.