Blues came from over a hundred-year-evolving juxtaposition of the musical and cultural
traditions of Africa (i.e. African American slaves) and Europe. Traditional Blues
represent the structural and cultural genesis of blues, a genre that manifested an
array of African-American cultural experience (i.e. spirituals to work songs to field
hollers) into a three-phrase lyrical prose aligned within a 12-bar song structure.
The 12-bar blues song-form is musically identified by a thematic, three-chord progression
which uses the tonic, sub-dominant and dominant chords of the scale and a melodically
alternating, bended 'blue note': a lowered third scale degree (or mediant), which
alternates with frequent improvisation, between its natural third scale degree. Rooted
in the traditions of the Deep South and also known as Country Blues, Traditional Acoustic
Blues is primarily minimal in instrumentation (i.e. a vocalist accompanied by an acoustic
guitar) and lyric themes tend to focus on hardship and sorrow.
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