Editing Jazz scale (section)

==Altered dominant scale==
{{unreferenced section|date=July 2023}}
{{main article|Altered scale}}{{Image frame|content=<score sound="1">
{
\override Score.TimeSignature #'stencil = ##f
\relative c' {
  \clef treble
  \time 7/4 b4 c d es f g a b
} }
</score>
|width=300|caption=The altered dominant scale built on B}}The altered dominant scale, also called the altered scale, is so named because all the scale members that can be altered relative to the basic dominant scale (the [[Mixolydian mode]]), without losing the [[Dominant (music)|dominant]] quality, are altered. The scale includes both altered fifths ({{music|b}}5 and {{music|#}}5) and both altered ninths ({{music|b}}9 and {{music|#}}9).

*Starting on G, it contains the notes: G, A{{music|flat}}, B{{music|flat}}, C{{music|flat}}, D{{music|flat}}, E{{music|flat}} and F.
*Starting on C, it contains the notes: C, D{{music|flat}}, E{{music|flat}}, F{{music|flat}}, G{{music|flat}}, A{{music|flat}} and B{{music|flat}}.

The altered fifths coincide enharmonically with the {{music|#}}11 and the {{music|b}}13 which would also be considered altered relative to their Mixolydian forms. The tonic, [[major third]] (as a [[diminished fourth]]), and [[Dominant seventh chord|dominant seventh]] are retained as essential to the dominant quality.

The scale can also be understood as a mode of the ascending melodic minor scale starting from the 7th scale degree. For a G<sup>7</sup> chord, the A{{music|flat}} [[Minor_scale#Melodic_minor_scale|melodic minor scale]] starting from G produces the G altered dominant scale.

This scale is also called the ''super-Locrian scale'', as it is indeed reminiscent of a [[Locrian scale]] with a {{music|b}}4, but it is usually regarded as that of [[major and minor#Major and minor scales|major]] quality. Another name for this scale is the diminished whole-tone scale due to its resemblance to the lower part of the [[Octatonic scale|diminished scale]] and the upper part of the [[whole tone scale]].