Chord · Bb Minor 7th
B♭m7 Chord
B♭m7 is Bb, Db, F and Ab — smooth, mellow. The ii in ii-V-I.
B♭m7 on every instrument
The same 4 notes, 6 sets of hands. Open a diagram for alternate shapes, audio and the mistakes to avoid.
What B♭m7 is made of
Bb Minor 7th (Bb minor 7th) is built from the notes Bb, Db, F, Ab, with the interval pattern 1, b3, 5, b7. A common minor 7th chord across many styles.
Stack 1, b3, 5 and b7 on a root of B♭ and you get Bb, Db, F and Ab. That interval recipe is what makes the chord a minor seventh chord — move the same shape to another root and the character travels with it, which is why Cm7 sounds like a transposed B♭m7.
Minor 7th: Smooth, mellow. The ii in ii-V-I.
Spelling: the notes above are written the way a score would write them, not simplified to the nearest piano key. That is why this chord is spelled with B♭ rather than its enharmonic equivalent.
Keys that contain B♭m7
All 4 notes sit inside the scale of 10 keys. The roman numeral marks the degree the chord is rooted on.
Other chords on B♭
Same root, different colour.
The same minor seventh shape, moved
The identical interval recipe, built on other roots.
Questions people ask about Bbm7
- What notes are in the Bbm7 chord?
- Bbm7 is made of Bb, Db, F and Ab — the 1, b3, 5 and b7 degrees of a minor seventh chord built on Bb.
- What keys use the Bbm7 chord?
- Every note of Bbm7 belongs to 10 keys: Ab Major (ii), Db Major (vi), F# Major (iii), Gb Major (iii), C# Major (vi), F Minor (iv), Bb Minor (i), D# Minor (v), Eb Minor (v), A# Minor (i). The roman numeral is the scale degree the chord is rooted on.
- How do you play Bbm7 on guitar and piano?
- This page shows Bbm7 on guitar, piano, ukulele, bass, mandolin and banjo — 10 voicings in total. Each diagram links to the full instrument page with alternate shapes, audio and common mistakes.
- Is Bbm7 the same as A#m7?
- Yes. Bbm7 and A#m7 are enharmonic — identical pitches written two different ways. Which spelling you use depends on the key you are in; Bbm7 is the spelling this site treats as canonical.
Learn the theory behind it
Why B♭m7 behaves the way it does — the guides that explain the chord instead of just spelling it.