B♭ Melodic Minor Scale

Scale steps
W = 2 semitones H = 1 semitone
B2WC1HD2WE2WF2WG2WA1HB
Step Pattern: W–H–W–W–W–W–H (2–1–2–2–2–2–1 semitones)
On the keyboard
CFGACFGACDEBDEB

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
Cm minor

C · E · G

3 + 4 semitones
GEGC
123
0333
GExC
12
03x3 · ALT
III+
DEFGA
Daug augmented

D · F · A

4 + 4 semitones
ADFA
312
2110
ADFD
3124
2114 · ALT
IV
EFGAB
E major

E · G · B

4 + 3 semitones
GEGB
231
0331
BEGB
2341
3331 · ALT
V
FGABC
F major

F · A · C

4 + 3 semitones
ACFA
21
2010
ACFC
213
2013 · ALT
vi°
GABCD
Gdim diminished

G · B · D

3 + 3 semitones
GDGB
132
0131
BDGB
3142
3131 · ALT
vii°
ABCDE
Adim diminished

A · C · E

3 + 3 semitones
AExC
123
23x3