Editing Blues scale (section)

===Hexatonic===
The [[hexatonic scale|hexatonic]], or six-note, blues scale consists of the [[Pentatonic scale#Minor pentatonic scale|minor pentatonic scale]] plus the {{music|flat}}5th [[degree (music)|degree]] of the original [[heptatonic scale]].<ref>[[Jim Ferguson|Ferguson, Jim]] (2000). ''All Blues Scale for Jazz Guitar: Solos, Grooves & Patterns'', p. 6. {{ISBN|0-7866-5213-6}}.</ref><ref name="Arnold">Arnold, Bruce (2002). ''The Essentials: Chord Charts, Scales and Lead Patterns for Guitar'', p. 8. {{ISBN|1-890944-94-7}}.</ref><ref>Harrison, Mark (2003). ''Blues Piano: Hal Leonard Keyboard Style Series'', p. 8. {{ISBN|0-634-06169-0}}.</ref><!-- Ferguson is the main reference. --> This added note can be spelled as either a {{music|flat}}5 or a {{music|sharp}}4. 

[[File:Blues_Scale_as_first_published_by_Jamey_Aebersold.jpeg|thumb|right|The first known published version of the blues scale, from Aebersold's revised 1970 Volume 1: ''How to Play Jazz and Improvise'']]
[[File:Blues chromatic circle diagrams.jpg|thumb|Chromatic circle diagrams of the Hexatonic, Heptatonic, and Nonatonic blues scales.]]
The first known published instance of this scale is [[Jamey Aebersold]]'s ''How to Play Jazz and Improvise Volume 1'' (1970 revision, p. 26), and Jerry Coker claims that David Baker may have been the first educator to organise this particular collection of notes pedagogically as a scale to be taught in helping beginners evoke the sound of the blues.<ref>Thibeault, M. D. (2022). "Aebersold's Mediated Play-A-Long Pedagogy and the Invention of the Beginning Jazz Improvisation Student". ''[[Journal of Research in Music Education]]'' {{doi|10.1177/00224294211031894}}</ref> 

: <score sound="1"> {
\override Score.TimeSignature #'stencil = ##f
\relative c' { 
  \clef treble \time 6/4
  c4 es f fis g bes c2
} }
</score>
A major feature of the blues scale is the use of [[blue note]]s—notes that are played or sung [[microtonality|microtonally]], at a slightly higher or lower pitch than standard.<ref name="The Pentatonic and Blues Scale">{{cite web |title=The Pentatonic and Blues Scale |publisher=How To Play Blues Guitar |date=2008-07-09 |access-date=2008-07-11 |url=http://how-to-play-blues-guitar.com/blues-concepts/the-pentatonic-and-blues-scale/ |archive-url=https://web.archive.org/web/20080714070421/http://how-to-play-blues-guitar.com/blues-concepts/the-pentatonic-and-blues-scale/ |archive-date=2008-07-14 |url-status=dead }}</ref> However, since blue notes are considered alternative inflections, a blues scale may be considered to not fit the traditional definition of a scale.<ref>J. Bradford Robinson/Barry Kernfeld. "Blue Note", ''The New Grove Dictionary of Jazz'', Second Edition, London (2002)</ref> At its most basic, a single version of this blues scale is commonly used over all changes (or [[chord (music)|chords]]) in a [[twelve-bar blues|twelve-bar blues progression]].<ref name="Between the Licks">{{cite web |author=Bryan Helmig |title=Blues Licks From Blues Scales |publisher=Between the Licks |date=2008-02-25 |access-date=2008-06-24 |url=http://betweenthelicks.com/blues-guitar/blues-licks-from-blues-scales |url-status=dead |archive-url=https://web.archive.org/web/20080428205456/http://betweenthelicks.com/blues-guitar/blues-licks-from-blues-scales |archive-date=2008-04-28 }}</ref> Likewise, in contemporary [[jazz harmony|jazz theory]], its use is commonly based upon the [[key (music)|key]] rather than the individual chord.<ref name="Arnold" />

Greenblatt defines two blues scales, the major and the minor. The major blues scale is 1, 2,{{music|b}}3, 3, 5, 6 and the minor is 1, {{music|b}}3, 4, {{music|b}}5, 5, {{music|b}}7.<ref>Greenblatt, Dan (2011). ''The Blues Scales – Eb Version'', {{page needed|date=October 2021}}. {{ISBN|9781457101472}}.</ref> The latter is the same as the hexatonic scale described above.

In the [[Solfège#Major|Movable do solfège]], the hexatonic major blues scale is [[Solmization|solmized]] as "do-re-me-mi-sol-la"; In the [[Solfège#Minor|La-based minor movable do solfège]], the hexatonic minor blues scale is solmized as "la-do-re-me-mi-sol".