C♯ Major Scale

Scale steps
W = 2 semitones H = 1 semitone
C2WD2WE1HF2WG2WA2WB1HC
Step Pattern: W–W–H–W–W–W–H (2–2–1–2–2–2–1 semitones)
On the keyboard
BEBEBCDFGACDFGA

Diatonic triads

Degree
Build the chord · root–3rd–5th

ROOTTAKESKIP

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

C · E · G

4 + 3 semitones
GCEC
1234
1114
GCEx
123
111x · ALT
ii
DEFGA
Dm minor

D · F · A

3 + 4 semitones
ADFA
3421
3321
ADFx
231
332x · ALT
iii
EFGAB
Em minor

E · G · B

3 + 4 semitones
GBEB
123
1013
GBEx
12
101x · ALT
IV
FGABC
F major

F · A · C

4 + 3 semitones
ACFA
4132
3121
ACFC
3124
3124 · ALT
V
GABCD
G major

G · B · D

4 + 3 semitones
GDGB
1243
1343
GDxB
123
13x3 · ALT
vi
ABCDE
Am minor

A · C · E

3 + 4 semitones
ACEA
4123
3111
ACEC
3124
3114 · ALT
vii°
BCDEF
Bdim diminished

B · D · F

3 + 3 semitones
xDFB
213
x323