Bb9 chord (B flat dominant ninth) on piano
Bb9 (B flat dominant ninth) has five notes: B flat, D, F, A flat and C. Its formula is 1, 3, 5, b7, 9. In major keys, Bb9 is the V9 chord in Eb major.
Bb9 inversions and fingering
Bb D Ab · LH 5-3-1
Bb Ab D F C · RH 1-2-5 · LH 5-1
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| Symbol | Bb9 |
|---|---|
| Also written | Bbdom9 |
| Notes | Bb D F Ab C |
| Formula | 1 3 5 b7 9 |
| Intervals | root, major third, perfect fifth, minor seventh, major second |
| Type | Dominant ninth chord |
Bb9 across the keyboard
Piano, C3 to C5. Notes in this scale, low to high: C3 (9), D3 (3), F3 (5), Ab3 (flat 7), Bb3 (1), C4 (9), D4 (3), F4 (5), Ab4 (flat 7), Bb4 (1), C5 (9).
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Questions
What notes are in the Bb9 chord?
Bb9 (B flat dominant ninth) has five notes: B flat, D, F, A flat and C. Its formula is 1, 3, 5, b7, 9. Bb is the root, D is the major third, F is the perfect fifth, Ab is the minor seventh and C is the major second.
How do you play Bb9 on piano?
Play Bb, D, F, Ab and C together. Shell (left hand): Bb D Ab · LH 5-3-1.
What key is Bb9 in?
In major keys, Bb9 is the V9 chord in Eb major. It is diatonic to those keys, so it fits songs in any of them.
What is the difference between Bb9 and Bb7?
Bb9 is Bb7 (Bb, D, F and Ab) with C, the 9th, added.