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Bbm7b5 Guitar Chord

A key chord of minor jazz. Occurs naturally as the ii chord in minor keys (in ii–V–i progressions). Less tense than the fully diminished seventh chord.

Guitar

Strings X–1–2–1–2–X

How to play the Bbm7b5 chord on guitar

Read the string pattern X–1–2–1–2–X from the low E string to the high E string. Numbers in the pattern are frets; numbers in the colored dots are left-hand fingers. X means a muted string and 0 means an open string.

6th string (low E) Muted
5th string (A) Fret 1 · index finger
4th string (D) Fret 2 · ring finger
3rd string (G) Fret 1 · middle finger
2nd string (B) Fret 2 · pinky
1st string (high E) Muted

Other names for the Bbm7b5 chord

Other names: Bb minor 7th flat 5, Bb half-diminished, Bbø7, Bbm7♭5

Music theory name: half-diminished seventh chord

Common name: Bb half-diminished chord

Notes and intervals in the Bbm7b5 chord

Note Interval
Bb Root
Db Minor 3rd
Fb Diminished 5th
Ab Minor 7th

All variations

Open
X–1–2–1–2–X
Open
X–X–2–3–2–4
Fret 5
6–X–6–6–5–X
Fret 8
X–X–8–9–9–9

Songs using Bbm7b5