Also written B♭ Diminished (Half–Whole) — the same pitches spelled the other way.
Half then whole steps — the scale over a 7b9 chord, giving the b9, #9, #11 and 13. The other half of the octatonic pair.
| Notes | A#, B, C#, D, E, F, G, G# |
|---|---|
| Steps | H – W – H – W – H – W – H – W (W = whole, H = half) |
| Also called | Dominant Diminished |
Root notes are red. The full map of the scale on the guitar neck; the common box patterns are groups of these notes.
The same scale on a ukulele in standard G–C–E–A tuning.
See the diatonic chords with audio in the Scale & Chord Finder, find where a key sits among the others on the Circle of Fifths, or start the free Cloud Atelier music guides.