A#
Modes Scale
A# / B♭ Locrian
The 7th mode — only mode with a diminished 5th. Unstable and rarely used as home key.
Notes in A# Locrian
Bb1
B2
Db3
Eb4
E5
Gb6
Ab7
Bb8
Chords in A# Locrian
7 diatonic chordsDegreeChordNotesQuality
iBb°Bb – Db – Ediminished
IIBB – Eb – Gbmajor
iiiDbmDb – E – Abminor
ivEbmEb – Gb – Bbminor
VEE – Ab – Bmajor
VIGbGb – Bb – Dbmajor
viiAbmAb – B – Ebminor
Other Scales in A#
MajorBb, C, D, Eb, F, G, ANatural MinorBb, C, Db, Eb, F, Gb, AbHarmonic MinorBb, C, Db, Eb, F, Gb, AMelodic MinorBb, C, Db, Eb, F, G, ADorianBb, C, Db, Eb, F, G, AbPhrygianBb, B, Db, Eb, F, Gb, AbLydianBb, C, D, E, F, G, AMixolydianBb, C, D, Eb, F, G, AbMajor PentatonicBb, C, D, F, GMinor PentatonicBb, Db, Eb, F, AbBluesBb, Db, Eb, E, F, AbWhole ToneBb, C, D, E, Gb, AbDiminished (H-W)Bb, B, Db, D, E, F, G, AbDiminished (W-H)Bb, C, Db, Eb, E, Gb, G, APhrygian DominantBb, B, D, Eb, F, Gb, AbHungarian MinorBb, C, Db, E, F, Gb, ALydian DominantBb, C, D, E, F, G, Ab
Locrian in All 12 Keys
Practice by Ear
Chords in A# / Bb Locrian
The A# locrian scale contains the notes Bb, B, Db, Eb, E, Gb, Ab. The 7th mode — only mode with a diminished 5th. Unstable and rarely used as home key.
The diatonic chords in A# locrian are Bb° (i), B (II), Dbm (iii), Ebm (iv), E (V), Gb (VI), Abm (vii). These are the chords you can use when writing or improvising in this key — every note in each chord belongs to the A# locrian scale.
To develop your ear for the A# locrian sound, use the scale and chord trainers linked above. Being able to recognise these sounds by ear — not just read them from a chart — is what separates musicians who truly hear music from those who only read it.