Also written B♭ Diminished (Whole–Half) — the same pitches spelled the other way.
Eight notes alternating whole then half steps — the scale over a diminished 7th chord. Fully symmetric: it repeats every minor third.
| Notes | A#, C, C#, D#, E, F#, G, A |
|---|---|
| Steps | W – H – W – H – W – H – W – H (W = whole, H = half) |
| Also called | Octatonic |
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.