Half Whole Diminished Scale
The Half Whole Diminished scale: 8 notes per octave, from the symmetric family.
The Half Whole Diminished scale is a 8-note scale in the symmetric family. Tense, symmetrical, and slightly sinister — alternating half and whole steps pack in the b9, #9, #11, and 13, so it sounds like a dominant chord stretched to breaking point. Edgy, jazzy, and restless. Heard in: Jazz lines over 13b9 dominant chords, fusion, film-noir and horror scoring — the sound of a V chord that refuses to settle. Like every scale, it is defined by the semitone distances between its degrees, so the same pattern produces the scale from any starting note. Pick a tonic below to see the notes it contains.