Chicago blues

Chicago blues is a form of blues music that developed in Chicago, Illinois. It is based on earlier blues idioms, such as Delta blues, but is performed in an urban style. It developed alongside the Great Migration of African Americans of the first half of the twentieth century. Key features that distinguish Chicago blues from the earlier traditions, such as Delta blues, are the prominent use of electrified instruments (especially the electric guitar), and the use of electronic effects, such as distortion and overdrive.