Bb
F
C#
Ab
Bb
B
D
E
B
G
Bb
F
C#
Ab
E
B
C#
D
F
G
D
Bb
C#
Ab
E
B
G
D
E
F
Ab
Bb
F
C#
E
B
G
D
Bb
F
G
Ab
B
C#
Ab
E
G
D
Bb
F
C#
Ab
Bb
B
D
E
B
G
Bb
F
C#
Ab
E
B
C#
D
F
G
D
Bb
C#
Ab
E
B
G
D
E
F
Ab
Bb
F
C#
E
B
G
D
Bb
F
G
Ab
B
C#
Ab
E
G
D
Bb
F
C#
Ab
Bb
B
D
E
B
G
Bb
F
C#
Ab
E
B
C#
G Half-Whole Diminished Scale notes: G Ab Bb B C# D E F. Formula: 1 b2 b3 3 #4 5 6 b7. Chords that fit it: G, Gm, G7, Gm7, Gdim, Gdim7, Gm7b5, G5.
The half-whole diminished scale alternates half and whole steps: 1 b2 b3 3 #4 5 6 b7. It fits dominant chords with b9 and #9, so it is a jazz and fusion staple over 7b9 chords. It is symmetric: the pattern repeats every three frets, so there are only three different ones.