Bm7b5 chord (B half-diminished seventh) on piano
Bm7b5 (B half-diminished seventh) has four notes: B, D, F and A. Its formula is 1, b3, b5, b7. In major keys, Bm7b5 is the viiø7 chord in C major.
Bm7b5 inversions and fingering
B D F A · RH 1-2-3-5 · LH 5-3-2-1
D F A B · RH 1-2-4-5 · LH 5-3-2-1
F A B D · RH 1-2-3-5 · LH 5-3-2-1
A B D F · RH 1-2-3-5 · LH 5-4-2-1
B D A · LH 5-3-1
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| Symbol | Bm7b5 |
|---|---|
| Also written | Bø, Bø7, Bmin7b5, B-7b5 |
| Notes | B D F A |
| Formula | 1 b3 b5 b7 |
| Intervals | root, minor third, tritone, minor seventh |
| Type | Half-diminished seventh chord |
Bm7b5 across the keyboard
Piano, C3 to C5. Notes in this scale, low to high: D3 (flat 3), F3 (flat 5), A3 (flat 7), B3 (1), D4 (flat 3), F4 (flat 5), A4 (flat 7), B4 (1).
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Questions
What notes are in the Bm7b5 chord?
Bm7b5 (B half-diminished seventh) has four notes: B, D, F and A. Its formula is 1, b3, b5, b7. B is the root, D is the minor third, F is the tritone and A is the minor seventh.
How do you play Bm7b5 on piano?
Play B, D, F and A together. Root position: B D F A · RH 1-2-3-5 · LH 5-3-2-1.
What key is Bm7b5 in?
In major keys, Bm7b5 is the viiø7 chord in C major. It is diatonic to those keys, so it fits songs in any of them.
What is the difference between Bm7b5 and Bdim7?
Bm7b5 and Bdim7 share B, D and F. Bm7b5 has A, the flat 7th, where Bdim7 has Ab, the double flat 7th.