urgent! !! what were the element that went to make jazz?

其實Jazz發展到五花八門,可以分好多種,每種有唔同元素(而且喜歡玩即興)
簡單講早期係
非洲黑人音樂開始,黑人風格的Blues藍調,福音聖歌,再溶入古典音樂和民族音樂元素,崇尚自由即興,熱鬧,活潑,多變


分類發展後...元素太多,自己睇
http://zh.wikipedia.org/wiki/%E7%88%B5%E5%A3%AB%E4%B9%90
例如:Big band Swing,bebop.....
Funky Jazz 意為於普通的jazz中加入hip hop的元素
其他類型分析:
Acid Jazz http://www1.discuss.com.hk/viewthread.php?tid=1737012
Nu-Jazz http://www5.discuss.com.hk/viewthread.php?tid=2447816&extra=page%3D1

留意紅字
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. 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.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 includes a variety of subgenres, such as New Orleans Dixieland dating from the early 1910s, big band-style swing from the 1930s and 1940s, bebop-style jazz from the mid-1940s, a variety of latin-jazz fusions such as Afro-Cuban and Brazilian jazz from the 1950s and 1960s, and jazz-rock fusion from the 1970s.
http://en.wikipedia.org/wiki/Jazz