Jazz was most popular in New Orleans and Chicago but originated in Africa years before. Jazz was based off of ragtime and became very popular in the 1920's.
No one knows where blues started exactly, but most agree the strongest influence is from the slaves. It is a combination of types of black folk music. Lyrics are based on the joys and struggles of life.
As the say Rome wasn't built in a day and either was the modern symphony orchestra and it's classical music. Classical music has been around for ages and has changed the world in the process with its brilliant composers.
