root position: Bbm7b5
B♭ – D♭ – F♭ – A♭
Bbm7b5 Piano Chord
The B flat half-diminished 7 chord (B♭m7♭5) is made of the notes B♭, D♭, F♭ and A♭. Its formula is 1 – ♭3 – ♭5 – ♭7.
Notes in B♭m7♭5
| Note | Formula | Interval from root |
|---|---|---|
| B♭ | 1 | root |
| D♭ | ♭3 | minor 3rd |
| F♭ | ♭5 | diminished 5th |
| A♭ | ♭7 | minor 7th |
How to play B♭m7♭5 on piano
- Right hand: fingers 1-2-3-5
- Left hand: fingers 5-3-2-1
Fingers are numbered from the thumb (1) to the little finger (5).
B♭m7♭5 inversions
1st inversion: Bbm7b5/Db
D♭ – F♭ – A♭ – B♭
2nd inversion: Bbm7b5/Fb
F♭ – A♭ – B♭ – D♭
3rd inversion: Bbm7b5/Ab
A♭ – B♭ – D♭ – F♭
Other names for Bbm7b5
B♭m7♭5 is also written as B♭m7♭5, Bbø7, B♭ø7, Bbø, B♭ø, Bbmin7b5, B♭min7♭5, Bb-7b5, B♭-7♭5, A#m7b5, A♯m7♭5, A#ø7, A♯ø7, A#ø, A♯ø, A#min7b5, A♯min7♭5, A#-7b5, A♯-7♭5.