Relation with Major Scale: It is similar to the traditional Locrian scale (VII degree of the major scale), but maintains a more coherent structure with natural minor scales.
Theoretical Aspects
Sound Character: Extremely unstable and dark, this scale pushes tonal tension to the limits. The presence of the minor third and minor seventh, combined with the diminished fifth, makes it dense, dark, and with little resolution.
Typical Chord: m7♭5 (half-diminished), or quartal chords or clusters
Modal Context: Used in experimental music, free jazz environments, or extreme metal, to evoke a sense of harmonic disorientation.
Harmonic Use: On half-diminished seventh chords or on modal vamps without resolution, in dark or experimental contexts.