The Blues and the Afro-American music
Blues as it is currently known draws its origins out of the simple songs, of African origin and perpetuated by an oral tradition, that the American black slaves sang in the 19th century in the cotton fields of the Mississippi to support their painful tasks.
Mainly sung a capella by a person and repeated by choruses, the Blues was sometimes accompanied by rudimentary instruments: a cord fixed on a board, small percussion instruments.
Very quickly this base evolves to integrate elements of the European and American music giving it this so particular and yet so familiar esthetics to everyone. This combination of various influences will contribute to develop other kinds of music: the negro spiritual, the gospel, jazz, the rhythm'n Blues, the soul, the rap.
The Blues evolves with its time. Initially acoustic and mainly interpreted with an harmonica and an acoustic guitar which remain the base of the Blues, it has evolved to electric forms integrating the electric guitar, the piano and the organ and even horn sections.
An excellent definition of the Blues is that of Willie Dixon,” The Blues are the roots, the rest are the fruits “.