TÄNA AJALOOS, 11. juuli ⟩ Avati Tallinna teletorn

The half diminished scale is a seven-note musical scale. It is more commonly known as the Locrian ♮2 scale^[1] or the Aeolian ♭5 scale, names that avoid confusion with the diminished scale and the half-diminished seventh chord (minor seventh, diminished fifth). It is the sixth mode of the 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 Cm^7♭5, which functions as a ii ^ø⁷ chord in minor (see chord-scale system).