A Melodic Minor Scale

Scale steps
W = 2 semitones H = 1 semitone
A2WB1HC2WD2WE2WF♯2WG♯1HA
Step Pattern: W–H–W–W–W–W–H (2–1–2–2–2–2–1 semitones)
On the keyboard
CDEABCDEABCF♯G♯F♯G♯

Diatonic triads

Degree
Build the chord · root–3rd–5th

ROOTTAKESKIP

Chord semitone gaps
Ukulele G-C-E-A
i
ABCDE
Am minor

A · C · E

3 + 4 semitones
ACEA
1
2000
ACEC
12
2003 · ALT
ii
BCDEF♯
Bm minor

B · D · F♯

3 + 4 semitones
BDF♯B
4123
4222
xDF♯B
123
x222 · ALT
III+
CDEF♯G♯
Caug augmented

C · E · G♯

4 + 4 semitones
G♯CEC
12
1003
G♯EEC
132
1403 · ALT
IV
DEF♯G♯A
D major

D · F♯ · A

4 + 3 semitones
ADF♯A
123
2220
xDF♯A
12
x220 · ALT
V
EF♯G♯AB
E major

E · G♯ · B

4 + 3 semitones
BEG♯B
2341
4442
G♯EEB
132
1402 · ALT
vi°
F♯G♯ABC
F♯dim diminished

F♯ · A · C

3 + 3 semitones
ACF♯A
12
2020
ACF♯C
123
2023 · ALT
vii°
G♯ABCD
G♯dim diminished

G♯ · B · D

3 + 3 semitones
BDG♯B
3142
4242
G♯DG♯B
1243
1242 · ALT