Half diminished scale

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Half diminished scale
G, A, B
Qualities
Number of pitch classes7
Forte number7-34
Complement5-34

The half diminished scale is a

ascending melodic minor scale
.

 {
\override Score.TimeSignature #'stencil = ##f
\relative c' {
  \clef treble \time 7/4
  c4^\markup { Half diminished scale on C } d es f ges aes bes c2
} }

In the key of B, the half-diminished scale built on C is associated with Cm75, which functions as a iiø7 chord in minor (see chord-scale system).

References