Bdim7 chord (B diminished seventh) on piano
Bdim7 (B diminished seventh) has four notes: B, D, F and A flat. Its formula is 1, b3, b5, bb7.
Bdim7 inversions and fingering
B D F Ab · RH 1-2-3-5 · LH 5-3-2-1
D F Ab B · RH 1-2-3-5 · LH 5-3-2-1
F Ab B D · RH 1-2-3-5 · LH 5-3-2-1
Ab B D F · RH 1-2-3-5 · LH 5-3-2-1
B D Ab · LH 5-3-1
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| Symbol | Bdim7 |
|---|---|
| Also written | B°7, Bo7 |
| Notes | B D F Ab |
| Formula | 1 b3 b5 bb7 |
| Intervals | root, minor third, tritone, major sixth |
| Type | Diminished seventh chord |
Bdim7 across the keyboard
Piano, C3 to C5. Notes in this scale, low to high: D3 (flat 3), F3 (flat 5), Ab3 (double flat 7), B3 (1), D4 (flat 3), F4 (flat 5), Ab4 (double flat 7), B4 (1).
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Questions
What notes are in the Bdim7 chord?
Bdim7 (B diminished seventh) has four notes: B, D, F and A flat. Its formula is 1, b3, b5, bb7. B is the root, D is the minor third, F is the tritone and Ab is the major sixth.
How do you play Bdim7 on piano?
Play B, D, F and Ab together. Root position: B D F Ab · RH 1-2-3-5 · LH 5-3-2-1.
What is the difference between Bdim7 and Bdim?
Bdim7 is Bdim (B, D and F) with Ab, the double flat 7th, added.