root position: Bbm7
B♭ – D♭ – F – A♭
The B flat minor 7 chord (B♭m7) is made of the notes B♭, D♭, F and A♭. Its formula is 1 – ♭3 – 5 – ♭7.
| Note | Formula | Interval from root |
|---|---|---|
| B♭ | 1 | root |
| D♭ | ♭3 | minor 3rd |
| F | 5 | perfect 5th |
| A♭ | ♭7 | minor 7th |
Fingers are numbered from the thumb (1) to the little finger (5).
B♭ – D♭ – F – A♭
D♭ – F – A♭ – B♭
F – A♭ – B♭ – D♭
A♭ – B♭ – D♭ – F
B♭m7 is also written as B♭m7, Bbmin7, B♭min7, Bb-7, B♭-7, A#m7, A♯m7, A#min7, A♯min7, A#-7, A♯-7.