E#
G#
D#
B
F#
D
A
B
C
D#
E#
C
G#
B
F#
D
A
E#
C
D
D#
F#
G#
D#
B
D
A
E#
C
G#
D#
E#
F#
A
B
F#
D
E#
C
G#
D#
B
F#
G#
A
C
D
A
E#
G#
D#
B
F#
D
A
B
C
D#
E#
C
G#
B
F#
D
A
E#
C
D
D#
F#
G#
D#
B
D
A
E#
C
G#
D#
E#
F#
A
B
F#
D
E#
C
G#
D#
B
F#
G#
A
C
D
A
E#
G#
D#
B
F#
D
A
B
C
D#
E#
C
G#
B
F#
B Half-Whole Diminished Scale notes: B C D D# E# F# G# A. Formula: 1 b2 b3 3 #4 5 6 b7. Chords that fit it: B, Bm, B7, Bm7, Bdim, Bdim7, Bm7b5, B5.
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.