Bm7b5 Guitar Chord
Bm7b5 (B half-diminished seventh) is a four-note chord made from B, D, F and A. A half-diminished chord is a diminished triad with a minor seventh on top. It is the ii chord of a minor key, so it opens the minor ii-V-i that jazz leans on.
Bm7b5 B half-diminished seventh
Open position1 / 4
Notes
- B1
- Db3
- Fb5
- Ab7
Built from the root B, the minor third D, the flat fifth F and the minor seventh A.
How to play Bm7b5
Frets from low E to high E; x means don't play that string.
Easiest shape to start with: Open position (x20201). It has 2 open strings, nothing above fret 2 and 1 muted string.
Keys with Bm7b5
Every note of Bm7b5 is in these keys. The numeral is its place in the key.
Major keys
- viiø7 in C major
Minor keys
- iiø7 in A minor