SCALE REFERENCE

B♭ Locrian

B♭ – C♭ – D♭ – E♭ – F♭ – G♭ – A♭1 b2 b3 4 b5 b6 b7

Also written A♯ Locrian — the same pitches spelled the other way.

The 7th mode of the major scale — a diminished tonic and a flat 2nd and 5th. Rare as a key centre, common over m7b5 chords.

Notes & degrees
B♭1C♭b2D♭b3E♭4F♭b5G♭b6A♭b7
NotesBb, Cb, Db, Eb, Fb, Gb, Ab
StepsH – W – W – H – W – W – W (W = whole, H = half)
Piano
C♭F♭B♭D♭E♭G♭A♭
Guitar & ukulele — every position (frets 0–12)
357912eF♭G♭A♭B♭C♭D♭E♭F♭BC♭D♭E♭F♭G♭A♭B♭C♭GA♭B♭C♭D♭E♭F♭G♭DE♭F♭G♭A♭B♭C♭D♭AB♭C♭D♭E♭F♭G♭A♭EF♭G♭A♭B♭C♭D♭E♭F♭

Root notes are red. The full map of the scale on the guitar neck; the common box patterns are groups of these notes.

357912AB♭C♭D♭E♭F♭G♭A♭EF♭G♭A♭B♭C♭D♭E♭F♭CD♭E♭F♭G♭A♭B♭C♭GA♭B♭C♭D♭E♭F♭G♭

The same scale on a ukulele in standard G–C–E–A tuning.

Chords in the key
DegreeTriad7th chord
i°B♭dimB♭m7♭5
♭IIC♭C♭maj7
♭iiiD♭mD♭m7
ivE♭mE♭m7
♭VF♭F♭maj7
♭VIG♭G♭7
♭viiA♭mA♭m7

These are the chords built by stacking scale notes in thirds. Click through for each chord's own diagrams:

i°B♭dim♭IIC♭♭iiiD♭mivE♭m♭VF♭♭VIG♭♭viiA♭m
Other scales on B♭

Core scales & modes

B♭ MajorB♭ Natural MinorB♭ Harmonic MinorB♭ Melodic MinorB♭ DorianB♭ PhrygianB♭ LydianB♭ Mixolydian

Pentatonic & blues

B♭ Major PentatonicB♭ Minor PentatonicB♭ BluesB♭ Major Blues

Jazz & altered

B♭ Harmonic MajorB♭ Phrygian DominantB♭ Lydian DominantB♭ AlteredB♭ Bebop Dominant

Symmetric

B♭ Whole ToneB♭ Diminished (Whole–Half)B♭ Diminished (Half–Whole)B♭ Augmented Scale

World & exotic

B♭ Hungarian MinorB♭ Double Harmonic MajorB♭ Neapolitan Minor
Locrian on another root
CC♯DD♯EFF♯GG♯AB♭A♯B
Keep exploring

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.