Music comes in many forms; most countries have a style of their own. __56__the tum of the century when jazz was born, America had no prominent__57__of its own. No one knows exactly when jazz was__58__, or by whom. But it began to be__59__in the early 1900s. Jazz is America's contribution to__60__music. In contrast to classical music, which__61__formal European traditions, jazz is spontaneous and free form.. It bubbles with energy,__62__the moods, interests, and emotions of the people. In the 1920s jazz__63__like America, and__64__it does today.
The__65__of this music are as interesting as the music__66__. American Negroes, or blacks, as they are called today, were the jazz__67__. They were brought to Southern States__68__slaves. They were sold to plantation owners and forced to work long__69__. When a Negro died his friend and relatives__70__a procession to carry the body to the cemetery In New Orleans, a band often accompanied the__71__. On the way to the cemetery the band played slow, solemn music suited to the occasion. __72__on the way home the mood changed. Spirits lifted. Death had removed one of their__73__, but the living were glad to be alive. The band played__74__music, improvising(即兴表演) on both the harmony and the melody of the tunes__75__at the funeral.
This music made everyone want to dance. It was an early form of jazz.

图5.I.1卫生间给排水平面图与系统图
