Science Fair Project Encyclopedia
The blue notes 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.
Blue notes are also prevalent in English folk music (Lloyd 1967, p.52-4).
- Middleton, Richard (1990/2002). Studying Popular Music. Philadelphia: Open University Press. ISBN 0335152759.
- Lloyd (1967).
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