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blue notes
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Fact File: Blue Notes

In jazz and blues music, blue notes are notes added to the major scale for expressive quality. They correspond approximately to the flatted third, flatted fifth, and flatted seventh scale degrees, although they approximate non-equal tempered pitches found in African work songs, specifically, the flatted seventh may often be a justly tuned minor seventh. Blue notes are the most important notes in the blues scale.

In its earliest manifestations, the flatted third and seventh were the main blue notes. Emphasis on the flatted fifth was an innovation in bebop in the 1940s.

A blue note is loosely defined by musicians to be any alteration to a scale or chord that makes it sound like the blues.

See also:-
syncopation | swing | call and response | polyrhythms | improvisation

Related Topics - Jazz History:-
Jazz Roots | Early 20th Century Jazz | Jazz in 1920s to 1950s | Development of Bebop | Latin Jazz | Jazz Fusion | Recent Developments in Jazz

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