F Major Scale

Scale steps
W = 2 semitones H = 1 semitone
F2WG2WA1HB♭2WC2WD2WE1HF
Step Pattern: W–W–H–W–W–W–H (2–2–1–2–2–2–1 semitones)
On the keyboard
CDEFGACDEFGACB♭B♭

Diatonic triads

Degree
Build the chord · root–3rd–5th

ROOTTAKESKIP

Chord semitone gaps
Ukulele G-C-E-A
I
FGAB♭C
F major

F · A · C

4 + 3 semitones
ACFA
21
2010
ACFC
213
2013 · ALT
ii
GAB♭CD
Gm minor

G · B♭ · D

3 + 4 semitones
GDGB♭
231
0231
B♭DGB♭
3241
3231 · ALT
iii
AB♭CDE
Am minor

A · C · E

3 + 4 semitones
ACEA
1
2000
ACEC
12
2003 · ALT
IV
B♭CDEF
B♭ major

B♭ · D · F

4 + 3 semitones
B♭DFB♭
4312
3211
xDFB♭
312
x211 · ALT
V
CDEFG
C major

C · E · G

4 + 3 semitones
GCEC
1
0003
GEEC
21
0403 · ALT
vi
DEFGA
Dm minor

D · F · A

3 + 4 semitones
ADFA
231
2210
xDFA
21
x210 · ALT
vii°
EFGAB♭
Edim diminished

E · G · B♭

3 + 3 semitones
GEEB♭
21
0401
GEGB♭
321
0431 · ALT