B♭ Harmonic Minor Scale

Scale steps
W = 2 semitones H = 1 semitone
B2WC1HD2WE2WF1HG3W+HA1HB
Step Pattern: W–H–W–W–H–W+H–H (2–1–2–2–1–3–1 semitones)
On the keyboard
CFACFACDEGBDEGB

Diatonic triads

Degree
Build the chord · root–3rd–5th

ROOTTAKESKIP

Chord semitone gaps
Ukulele G-C-E-A
i
BCDEF
Bm minor

B · D · F

3 + 4 semitones
BDFB
4123
3111
BDFD
3124
3114 · ALT
ii°
CDEFG
Cdim diminished

C · E · G

3 + 3 semitones
xEGC
213
x323
III+
DEFGA
Daug augmented

D · F · A

4 + 4 semitones
ADFA
312
2110
ADFD
3124
2114 · ALT
iv
EFGAB
Em minor

E · G · B

3 + 4 semitones
BEGB
3421
3321
BEGx
231
332x · ALT
V
FGABC
F major

F · A · C

4 + 3 semitones
ACFA
21
2010
ACFC
213
2013 · ALT
VI
GABCD
G major

G · B · D

4 + 3 semitones
BDGB
4132
3121
BDGD
3124
3124 · ALT
vii°
ABCDE
Adim diminished

A · C · E

3 + 3 semitones
AExC
123
23x3