What is the B Diminished (Half-Whole) Scale?

The Half-Whole Diminished scale is the mode of the Whole-Half that works over dominant 7th chords. By starting with a half step, it provides all the tensions (b9, #9, #11, 13) for a dominant 7th chord.

Interval Pattern: H-W-H-W-H-W-H-W

Scale Notes and Intervals

B Diminished (Half-Whole)

Tense
B 1
C 2
D 3
D# 4
F 5
F# 6
G# 7
A 8
Notes:
B -C -D -D# -F -F# -G# -A
Intervals:
HWHWHWH W

Keyboard Visualization

How to Play B Diminished (Half-Whole) on Piano

Scale Properties

Mood

Tense

Character

Dominant diminished, jazz

Genres

Jazz, Fusion

Notes in Scale

8 notes: B, C, D, D#, F, F#, G#, A

Category

Symmetric

Intervals

H-W-H-W-H-W-H-W

History and Origins

The Background of the Diminished (Half-Whole) Scale

Jazz musicians discovered that starting the diminished scale on a half step created perfect tensions for dominant 7th chords. It became a cornerstone of bebop and modern jazz vocabulary.

Musical Characteristics

Key Features of the B Diminished (Half-Whole) Scale

  • Eight notes alternating H-W
  • Perfect for dominant 7th alterations
  • Contains b9, #9, #11, and natural 13
  • Symmetrical structure

Famous Songs Using This Scale

Popular Tracks in B Diminished (Half-Whole)

  • Giant Steps - John Coltrane (specific passages)
  • Cherokee (bebop solos)
  • Moment's Notice - John Coltrane

Playing Tips

How to Practice the B Diminished (Half-Whole) Scale

Use over dominant 7th chords, especially those resolving to minor. Contains all the "altered" sounds plus natural 5 and 13. The symmetry means one fingering works in four keys.

Circle of Fifths Position

B in the Circle of Fifths

CGDAEBF#DbG#D#BbFAmEmBmF#mC#mG#mD#mBbmFmCmGmDmBminor
Major
Minor
Selected

Transpose to Other Keys

Diminished (Half-Whole) Scale in All 12 Keys

Related Scales

Similar Scales in the Key of B

Scale Diagram

B Diminished (Half-Whole) Keyboard Diagram

B Diminished (Half-Whole) scale shown on piano keyboard with notes B, C, D, D#, F, F#, G#, A highlighted