B Diminished Scale (Half-Whole)

Notes in the B Diminished Scale (Half-Whole)

Degree Name Note Frequency (A=440)
1 Tonic B 493.883 Hz
♭2 Altered 2nd C 261.626 Hz
♭3 Minor Mediant D 293.665 Hz
3 Major Mediant D# 311.127 Hz
♯4 Tritone F 349.228 Hz
5 Dominant F# 369.994 Hz
6 Major Submediant G# 415.305 Hz
♭7 Subtonic A 440.000 Hz

Interval Pattern

Formula: H-W-H-W-H-W-H-W
Step Interval Semitones From Note To Note
1 Half Step (H) 1 B C
2 Whole Step (W) 2 C D
3 Half Step (H) 1 D D#
4 Whole Step (W) 2 D# F
5 Half Step (H) 1 F F#
6 Whole Step (W) 2 F# G#
7 Half Step (H) 1 G# A
8 Whole Step (W) 2 A B

Chords Built on Scale Degrees

Degree Note Chord Quality
1 B B diminished diminished
♭2 C C diminished diminished
♭3 D D diminished diminished
3 D# D# diminished diminished
♯4 F F diminished diminished
5 F# F# diminished diminished
6 G# G# diminished diminished
♭7 A A diminished diminished

Key Signature

5 — The B key signature uses F#, C#, G#, D#, A#.

B Diminished Scale (Half-Whole) in Practice

The B Diminished Scale (Half-Whole) uses the key signature of 5 sharps (F#, C#, G#, D#, A#). B major has five sharps and a bright, somewhat tense quality. Enharmonically equivalent to Cb major, it is used in orchestral writing and some jazz compositions. On guitar, B positions offer open-string resonance for fingering positions for this scale.

The half-whole diminished scale alternates half and whole steps, creating an 8-note symmetrical scale ideal for dominant chord improvisation and tension-building in jazz.

Tuning Frequencies Across Temperaments

Frequencies shown at A=440 Hz. View full temperament data for any note.

Note Equal Temp. Pythagorean Just Intonation
B 493.883 Hz 495.000 Hz 490.548 Hz
C 261.626 Hz 260.740 Hz 261.626 Hz
D 293.665 Hz 293.332 Hz 294.329 Hz
D# 311.127 Hz 309.026 Hz 313.951 Hz
F 349.228 Hz 347.654 Hz 348.834 Hz
F# 369.994 Hz 371.251 Hz 367.911 Hz
G# 415.305 Hz 417.657 Hz 418.601 Hz
A 440.000 Hz 440.000 Hz 436.043 Hz

Related Scales

Guitar: B Diminished Scale (Half-Whole) Positions

The B key offers 5 sharps (F#, C#, G#, D#, A#) on guitar. Sharp-side keys like B are idiomatic guitar keys because open strings (E, A, D, G, B, E) align with the scale's natural resonance points.