Blues
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Electric Blues
Slide Guitar Blues
Slide guitar blues is produced when a player uses some kind of tubular finger covering (usually made of metal or glass, like a bottleneck) to depress the strings of a guitar over the frets so that the strings are stretched and bent, producing a wavering tone. Traditionally slide guitar blues was played on resonator guitars, but a variety of acoustic and electric guitars have also been used. Blues slide guitar originated in the Mississippi Delta region where it was popularized by a number of blues players, including Robert Johnson. Electric slide guitar blues developed along with other electric blues styles with the migration of African-Americans north to Chicago in the 1940s.