B Major Scale

Scale steps
W = 2 semitones H = 1 semitone
B2WC2WD1HE2WF2WG2WA1HB
Step Pattern: W–W–H–W–W–W–H (2–2–1–2–2–2–1 semitones)
On the keyboard
EBEBCDFGACDFGA

Diatonic triads

Degree
Build the chord · root–3rd–5th

ROOTTAKESKIP

Chord semitone gaps
Ukulele G-C-E-A
I
BCDEF
B major

B · D · F

4 + 3 semitones
BDFB
4312
4322
xDFB
312
x322 · ALT
ii
CDEFG
Cm minor

C · E · G

3 + 4 semitones
GCEC
123
1104
GEEC
123
1404 · ALT
iii
DEFGA
Dm minor

D · F · A

3 + 4 semitones
ADFA
3421
3321
ADFx
231
332x · ALT
IV
EFGAB
E major

E · G · B

4 + 3 semitones
BEGB
2341
4442
GEEB
132
1402 · ALT
V
FGABC
F major

F · A · C

4 + 3 semitones
ACFA
4132
3121
ACFC
3124
3124 · ALT
vi
GABCD
Gm minor

G · B · D

3 + 4 semitones
BDGB
3241
4342
GDGB
1342
1342 · ALT
vii°
ABCDE
Adim diminished

A · C · E

3 + 3 semitones
ACEA
312
3101
AEEC
123
3404 · ALT