because of 20th century african american migration from the south, many african americans live in most of the area's large cities. however, there are still more african americans living in the southern united states than in the midwest. the mix of industry and cultures in those cities led to new types of music in the 20th century in the midwest, including jazz, blues, rock and roll. jazz was invented in new orleans, but started to develop and grow in kansas city. techno music came from detroit and house music and blues came from chicago.