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Jazz was born in New Orleans in 1920s,it's mixed by african music,rhythm,blues and marching music.the instruments in the jazz bands included:trumpets,saxophones,
clarinets and drums

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Gospel was born mixed by spiritual songs and blues,in 1920s,when american applied segregation,where white and black people had separate facilities such as school,restaurants and churches

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Hip-Hop music and culture was created in the Bronx in the 1970s.Hip-Hop music is a mix of rock,jazz and soul with african-style drumming.Disco music become popular in the early 1970s in New York,disco is a mix of funk,soul,pop and salsa rhythm

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In the southern U.S.A.,afro-american slaves sang"work songs" in the plantations.These chants and shouts are originated from music of the west and central africa;these songs mixed with the european folk music become simple songs called:"the blues",typical instruments are harmonica and the guitar

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Rhythm and blues(often called R&B) it's originated in 1940s. It was a mixture of blues,jazz and gospel with a strong beat,it was very popular with the afro-americans