The Bbm7 chord contains B♭, D♭, F and A♭. Also written B♭m7, it combines a B-flat minor triad with a minor seventh. Compare its four keys in root position and three inversions.
Build the Bbm7 chord with degrees 1–♭3–5–♭7. D♭ is the minor third and A♭ is the minor seventh. B♭7 raises D♭ to D natural; the other three chord tones stay B♭, F and A♭.
Preserve the written chord spelling shown here; keyboard equivalence does not rename the chord.
Choose a position to keep the four written notes, sounding keys, bass note, playback and print reference synchronized.
Build the Bbm7 chord by selecting B♭, D♭, F and A♭ in the exercise. F stays natural despite the three flat notes. The check assesses the four pitch classes, not fingering or live piano performance.
B♭m7 uses 1–♭3–5–♭7: B♭–D♭–F–A♭.
a minor triad plus a minor seventh
Compared with B♭ minor, add the minor seventh above the root.
A seventh chord has four chord tones and therefore four positions: root position plus three inversions. The slash symbol identifies the written bass note.
| Position | Symbol | Notes, low to high | Bass |
|---|---|---|---|
| Root position, current selection | B♭m7 | B♭3–D♭4–F4–A♭4 | B♭3 |
| First inversion | B♭m7/D♭ | D♭4–F4–A♭4–B♭4 | D♭4 |
| Second inversion | B♭m7/F | F4–A♭4–B♭4–D♭5 | F4 |
| Third inversion | B♭m7/A♭ | A♭4–B♭4–D♭5–F5 | A♭4 |
The Bbm7 chord diagrams identify keys and note order without prescribing fingers. Inversions preserve B♭, D♭, F and A♭ while changing the lowest note. Use the octave labels to distinguish the written positions.
Use the written notes, keyboard positions and playback without treating the diagram as a required hand shape.
Read left- and right-hand finger numbersOpen Music Theory
Supports: Minor Seventh chord construction, written spelling and inversion principles
Scope: Supports theory and spelling only; keyboard layouts are PianoGrid examples, and no fingering is assigned.
B♭, D♭, F and A♭: root, minor third, perfect fifth and minor seventh. The formula is 1–♭3–5–♭7.
The Bbm7 chord uses D♭ as its third. B♭7 uses D natural. Both include B♭, F and A♭, so compare the third carefully.
No. The Bbm7 chord has D♭ and A♭. B♭maj7 uses D and A natural instead. Both the third and seventh change, while the root and fifth stay the same.
D♭ starts the first inversion, F the second and A♭ the third. Root position starts on B♭. Select a position to compare its written bass, keyboard and sound.
Select the four pitch classes that make B♭m7, then check your answer.
This one-octave exercise checks the exact four-note pitch-class set. Order and inversion do not affect the result; missing and extra notes are reported, while fingering and live performance are not assessed.
One octave, C through B. Select a key again to remove it.
Chord tones: B♭–D♭–F–A♭ · Formula: 1, ♭3, 5, ♭7
Dots mark the notes to play. C4 is middle C. Numbers identify octaves, not fingers.