
1) Relative of soul
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https://www.crosswordclues.com/clue/rhythm-and-blues

Rhythm and blues, often abbreviated to R&B or RnB, is a genre of popular African-American music that originated in the 1940s. The term was originally used by record companies to describe recordings marketed predominantly to urban African Americans, at a time when `urbane, rocking, jazz based music with a heavy, insistent beat` was becoming more .....
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http://en.wikipedia.org/wiki/Rhythm_and_blues

term used for several types of postwar African-American popular music, as well as for some white rock music derived from it. The term was coined by ... [13 related articles]
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http://www.britannica.com/eb/a-z/r/44

Rhythm and blues is London Cockney rhyming slang for shoes.
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http://www.probertencyclopaedia.com/browse/ZR.HTM

[
n] - a combination of blues and jazz that was developed in the United States by Black musicians
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http://www.webdictionary.co.uk/definition.php?query=rhythm%20and%20blues
R and B noun a combination of blues and jazz that was developed in the United States by Black musicians; an important precursor of rock `n` roll
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https://www.encyclo.co.uk/local/20974

Style of popular music developed in the USA during the 1940s–60s. It drew on swing and jazz rhythms and blues vocals, and was an important influence on rock and roll. It diversified into soul, funk, and other styles. R & B artists include Bo Diddley, Jackie Wilson, and Etta James
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https://www.encyclo.co.uk/local/21221

The all-encompassing term used to describe the African-American wellspring of postwar popular music. From rhythm and blues has come rock, soul, funk, rap and regional and stylistic offshoots. Critics consider rhythm and blues's birth to coincide with the decline of big bands and jazz's turn toward the bop emphasis on soloing. Rhythm and blues retai...
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https://www.factmonster.com/culture-entertainment/music/popular-music-gloss

a hybrid of traditional African-American folk roots and blues with various mainstream sources. R&B employs a wider variety of song structures and chord progressions than traditional blues; and, like jazz, it often features complex arrangements that may be unique to one particular song. Also, many R&B songs differ from traditional music in that they...
Found on
https://www.louisianavoices.org/edu_glossary.html
No exact match found.