Blues

Blues is the name given to both a musical form that originated in African American communities of primarily the "Deep South" of the United Stated at the end of the 19th century fromSpirituals, Work songs, field hollars, Shouts and Chants, and rhymed simple narrative Ballads.The blues form, ubiquitous in Jazz , rythem and blues and Rock and roll is characterized by specific chord progressions, The blues genre is based on the blues form but possesses other characteristics such as specific lyrics, bass lines and instruments. Blues can be subdivided into several sungenres ranging from country to urban blues that were more or less popular during different periods of the 20th century. The term "the blues" refers to the "blue devils", meaning melancholy and sadness; an early use of the term in this sense is found in George Colemans one-act farce Blue Devils (1798).Though the use of the phrase in African American music may be older, it has been attested to since 1912, when Hart Wards "Dallas Blues" became the first copyrighted blues composition In lyrics the phrase is often used to describe a depressed mood