Guitare Music Sheet : Blues Music
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Blues is a vocal and instrumental form of music based on the use of the blues chord progressions and the blue notes. Though several blues forms exist, the 12-bar blues chord progressions are the most frequently encountered. Blue notes are sung or played at a slightly lower pitch than that of the major scale for expressive purposes. Blues emerged as an accessible form of self-expression in African-American communities of the United States from spirituals, work songs, field hollers, shouts and chants, and rhymed simple narrative ballads. The use of blue notes and the prominence of call-and-response patterns in the music and lyrics are indicative of African influences. The blues influenced later American and Western popular music, as it became the roots of jazz, rhythm and blues, bluegrass and rock and roll. In the 1960s and 1970s, blues was popularized in a hybrid form called blues rock.