Bm7♭5
Half-dim · B – D – F – A
- BR
- Dm3
- F♭5
- A♭7
Guitar voicings
Piano
- Root
- Third / sus
- Fifth
- Sixth / seventh
- Extension
About the Bm7♭5 chord
The Bm7♭5 chord (Half-dim) is built from B (the root), D (a minor third), F (a diminished fifth) and A (a minor seventh). Half-diminished chords are moody and jazzy — most often the ii chord in a minor key.