Skip to content
Dim & aug familyviiø7 in C major

B half-diminished chord

Bm7♭5

B half-diminished

Piano root position

  • Root
  • ♭3
  • ♭5
  • ♭7

Guitar standard tuning

Barre · fret 2

Lay your index flat across strings 5 to 3 at fret 2.

E×ADGBe×12345Barre at fret 2BFAD

Finger: 1 index, 2 middle, 3 ring, 4 little

Notation treble clef

𝄞

Intervals

12 semitones
  1. B1
  2. ♭2
  3. 2
  4. D♭3
  5. 3
  6. 4
  7. F♭5
  8. 5
  9. ♯5
  10. 6
  11. A♭7
  12. 7
  • B Root
  • D Minor 3rd
  • F Diminished 5th
  • A Minor 7th

About this chord

What is a B half-diminished chord?

Bm7♭5 is built from 4 notes: B (the root), D (the ♭3), F (the ♭5), A (the ♭7). The ii chord of a minor key: dark but softer than fully diminished.

Notes
B · D · F · A
Formula
1 · ♭3 · ♭5 · ♭7
Also written
Bø7 · Bø
Found in
viiø7 in C major · iiø7 in A minor

Scales that contain Bm7♭5

Neighbours

Chords close to Bm7♭5

Play it, and Melodio names it.

The desktop app does the same, live: plug in a MIDI keyboard and every chord you hold appears with its notes, intervals and guitar shape. Free.

Download Melodio

Windows · macOS · Linux

All 348 chords

Every chord type on every root, each with its own page.

C

D♭

D

E♭

E

F

G♭

G

A♭

A

B♭

B