G♭ Major Scale

Scale steps
W = 2 semitones H = 1 semitone
G2WA2WB1HC2WD2WE2WF1HG
Step Pattern: W–W–H–W–W–W–H (2–2–1–2–2–2–1 semitones)
On the keyboard
FCFCDEGABDEGAB

Diatonic triads

Degree
Build the chord · root–3rd–5th

ROOTTAKESKIP

Chord semitone gaps
Ukulele G-C-E-A
I
GABCD
G major

G · B · D

4 + 3 semitones
BDGB
4132
3121
BDGD
3124
3124 · ALT
ii
ABCDE
Am minor

A · C · E

3 + 4 semitones
CEAC
3241
4342
AEAC
1342
1342 · ALT
iii
BCDEF
Bm minor

B · D · F

3 + 4 semitones
BDFB
4123
3111
BDFD
3124
3114 · ALT
IV
CDEFG
C major

C · E · G

4 + 3 semitones
CEGC
4312
4322
xEGC
312
x322 · ALT
V
DEFGA
D major

D · F · A

4 + 3 semitones
ADFD
1234
1114
ADFx
123
111x · ALT
vi
EFGAB
Em minor

E · G · B

3 + 4 semitones
BEGB
3421
3321
BEGx
231
332x · ALT
vii°
FGABC
Fdim diminished

F · A · C

3 + 3 semitones
AxFC
123
1x12