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 New England's religious hymns and 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.

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