Learn › Bbm9 Chord on Piano (B Flat Minor 9th)
New Released in April 2026
Bbm9 Chord on Piano (B Flat Minor 9th)
The B flat minor 9th chord (Bbm9) uses the piano keys Bb, Db, F, Ab and C: the minor seventh Bbm7 plus the 9th, C. In one phrase: mellow and soulful, minor without sadness.
No account, no download. The demo has limited content. Advanced features are in ChordRunner Premium.
- MIDI keyboard
- Digital or acoustic piano
- Guitar
- Computer, phone or tablet
Bbm9 and Dbmaj7
The four upper notes of Bbm9, Db F Ab C, are Dbmaj7. Play Bb low and Dbmaj7 above it: that is the whole Bbm9, and a quick way to reach it.
How Bbm9 is built
Every chord is a recipe of scale steps. For Bbm9 the recipe is 1 b3 5 b7 9, counted from Bb.
Start chord: Bbm7
| Note | Step | Interval | Keys from Bb |
|---|---|---|---|
| Bb | 1 | root | 0 |
| Db | b3 | minor 3rd | 3 |
| F | 5 | perfect 5th | 7 |
| Ab | b7 | minor 7th | 10 |
| C | 9 | major 9th | 14 |
Bbm9 in every position
Same notes, different order. Pick the position closest to the chord you just played.
Both hands: Bb Ab Db F C
Rootless, 3rd on the bottom: Db F Ab C
Rootless, 7th on the bottom: Ab C Db F
Left hand alone: Bb Ab
Which fingers
| Left hand | Bb Ab | 5 1 |
|---|---|---|
| Right hand | Db F C | 1 2 4 |
Make Bbm9 automatic
- Find Bb, then add the other notes one at a time: Bb, Db, F, Ab and C.
- Switch between Bbm7 and Bbm9 ten times without looking at your hand.
- Alternate root position and a rootless shape with the 3rd on the bottom, keeping shared notes still.
- Then test it in random order among other chords: recall under time pressure is what sticks.
Come back to Bbm9 tomorrow: short daily sessions beat one long one.
Keys and moves for Bbm9
- Bbm9 is the ii chord of Ab major and the vi chord of Db major.
- In a ii-V-I it often opens the line: Bbm9 → Eb7 → Abmaj7.
Train Bbm9 with ChordRunner
In ChordRunner every correct chord moves your runner forward. Plug in a MIDI keyboard or let the microphone listen to your piano. Major and minor 9ths have their own level, "Ninth Chords".
Play the demoCommon questions
What is Bbm9 on the piano?
Bbm9 is the B flat minor 9th chord: Bb, Db, F, Ab and C, the minor seventh Bbm7 plus the 9th, C.
What is the difference between Bbm9 and Bbm7?
Bbm7 is Bb Db F Ab. To get Bbm9, add C above the minor seventh.
Where is Bbm9 used?
Bbm9 is the ii chord of Ab major and the vi chord of Db major. In a ii-V-I it often opens the line: Bbm9 → Eb7 → Abmaj7.
Can I practise Bbm9 with a MIDI keyboard or a real piano?
Yes. In ChordRunner a USB MIDI keyboard is detected automatically, and an acoustic or digital piano works through the microphone. The game checks that Bb, Db, F, Ab and C sound together.
Your instrument is the controller.
ChordRunner is a browser game that teaches piano and guitar chords: a chord appears on screen, you play it on a real instrument, and your runner jumps. MIDI keyboard or microphone, both work.
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