B♭ Harmonic Minor Scale

Scale steps
W = 2 semitones H = 1 semitone
B♭2WC1HD♭2WE♭2WF1HG♭3W+HA1HB♭
Step Pattern: W–H–W–W–H–W+H–H (2–1–2–2–1–3–1 semitones)
On the keyboard
CFACFACD♭E♭G♭B♭D♭E♭G♭B♭

Diatonic triads

Degree
Build the chord · root–3rd–5th

ROOTTAKESKIP

Chord semitone gaps
Ukulele G-C-E-A
i
B♭CD♭E♭F
B♭m minor

B♭ · D♭ · F

3 + 4 semitones
B♭D♭FB♭
4123
3111
B♭D♭FD♭
3124
3114 · ALT
ii°
CD♭E♭FG♭
Cdim diminished

C · E♭ · G♭

3 + 3 semitones
xE♭G♭C
213
x323
III+
D♭E♭FG♭A
D♭aug augmented

D♭ · F · A

4 + 4 semitones
AD♭FA
312
2110
AD♭FD♭
3124
2114 · ALT
iv
E♭FG♭AB♭
E♭m minor

E♭ · G♭ · B♭

3 + 4 semitones
B♭E♭G♭B♭
3421
3321
B♭E♭G♭x
231
332x · ALT
V
FG♭AB♭C
F major

F · A · C

4 + 3 semitones
ACFA
21
2010
ACFC
213
2013 · ALT
VI
G♭AB♭CD♭
G♭ major

G♭ · B♭ · D♭

4 + 3 semitones
B♭D♭G♭B♭
4132
3121
B♭D♭G♭D♭
3124
3124 · ALT
vii°
AB♭CD♭E♭
Adim diminished

A · C · E♭

3 + 3 semitones
AE♭xC
123
23x3