Blues scale

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The term blues scale refers to several different scales with differing numbers of pitches and related characteristics.

Types

Hexatonic

The hexatonic, or six-note, blues scale consists of the minor pentatonic scale plus the ♯4th or ♭5th degree.[1][2][3] A major feature of the blues scale is the use of blue notes,[4] however, since blue notes are considered alternative inflections, a blues scale may be considered to not fit the traditional definition of a scale.[5] At its most basic, a single version of this "blues scale" is commonly used over all changes (or chords) in a twelve bar blues progression.[6] Likewise, in contemporary jazz theory, its use is commonly based upon the key rather than the individual chord.[2]

Blues scale as minor pentatonic plus flat-5th/sharp-4th <phonos file="Blues scale hexatonic C.mid">Play</phonos>.

Greenblatt defines two blues scales, the major and the minor. The major blues scale is C, D, D♯/E♭, E, G, A and the minor is C, D♯/E♭, F, F♯/G♭, G, B♭.[7] The latter is the hexatonic scale (top).

Heptatonic

The heptatonic, or seven-note, conception of the "blues scale" is as a diatonic scale (a major scale) with lowered third, fifth, and seventh degrees[8] and blues practice is derived from the "conjunction of 'African scales' and the diatonic western scales".[9] Steven Smith argues that, "to assign blue notes to a 'blues scale' is a momentous mistake, then, after all, unless we alter the meaning of 'scale'".[10] It is the 2nd mode of the Harmonic Major scale.

Blues scale as diatonic scale with lowered 3rd, 5th, and 7th degrees <phonos file="Blues scale heptatonic C.mid">Play</phonos>.

Nonatonic

An essentially nine note blues scale is defined by Benward and Saker as a chromatic variation of the major scale featuring a flat third and seventh degrees which, "alternating with the normal third and seventh scale degrees are used to create the blues inflection. These 'blue notes' represent the influence of African scales on this music."[11][better source needed]

Blues scale as a chromatic variant of the major scale <phonos file="Blues scale variation of major scale.mid">Play</phonos>.

Usage

In jazz, the blues scale is used by improvising musicians in a variety of harmonic contexts. It can be played for the entire duration of a twelve bar blues progression constructed off the root of the first dominant seventh chord. For example, a C hexatonic blues scale could be used to improvise a solo over a C blues chord progression. The blues scale can also be used to improvise over a minor chord. Jazz educator Jamey Aebersold describes the sound and feel of the blues scale as ‘funky,’ ‘down-home,’ ‘earthy,’ or ‘bluesy.’ [12]

The blues scale is also used in other genres to reference the blues idiom.[citation needed]


References

  1. ↑ Ferguson, Jim (2000). All Blues Scale for Jazz Guitar: Solos, Grooves & Patterns, p.6. ISBN 0-7866-5213-6.
  2. ↑ 2.0 2.1 Arnold, Bruce (2002). The Essentials: Chord Charts, Scales and Lead Patterns for Guitar, p.8. ISBN 1-890944-94-7.
  3. ↑ Harrison, Mark (2003). Blues Piano: Hal Leonard Keyboard Style Series, p.8. ISBN 0-634-06169-0.
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ J. Bradford Robinson/Barry Kernfeld. "Blue Note", The New Grove Dictionary of Jazz, Second Edition, London (2002)
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Greenblatt, Dan (2011). The Blues Scales - Eb Version, p.?. ISBN 9781457101472.
  8. ↑ Smallwood, Richard (1980). "Gospel and Blues Improvisation" p.102, Music Educators Journal, Vol. 66, No. 5. (Jan., 1980), p.100-104.
  9. ↑ Oliver, Paul. "That Certain Feeling: Blues and Jazz... in 1890?" p.13, Popular Music, Vol. 10, No. 1, The 1890s. (Jan., 1991), pp. 11-19. Cites Rudi Blesh.
  10. ↑ Smith, Steven G. (1992). "Blues and Our Mind-Body Problem", Popular Music, Vol. 11, No. 1. (Jan., 1992), pp. 41-52.
  11. ↑ Benward & Saker (2003). Music: In Theory and Practice, Vol. I, p.39. Seventh Edition. ISBN 978-0-07-294262-0.
  12. ↑ Aebersold, J. ‘How to Play Jazz and Improvise: Volume One’ (1967)

Further reading

External links

cs:Bluesová stupnice

de:Bluestonleiter es:Escala de blues eo:Blusa gamo it:Scala blues lv:Blūza skaņkārta no:Blues-skala pl:Skala bluesowa simple:Blues scale

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