12 bar blues started out as a combination of European popular songs, African rhythm and tonality which developed in cotton fields.
12 bar blues started out as a combination of European popular songs, African rhythm and tonality which developed in cotton fields.
12小节布鲁斯的根源多处可循：欧洲流行乐，非洲节奏和棉花地里发展起来的劳动号子都逃不了干系。