Bdim chord (B diminished) on piano
Bdim (B diminished) has three notes: B, D and F. Its formula is 1, b3, b5. In major keys, Bdim is the vii° chord in C major.
Bdim inversions and fingering
B D F · RH 1-3-5 · LH 5-3-1
D F B · RH 1-2-5 · LH 5-3-1
F B D · RH 1-3-5 · LH 5-2-1
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| Symbol | Bdim |
|---|---|
| Also written | B°, Bo |
| Notes | B D F |
| Formula | 1 b3 b5 |
| Intervals | root, minor third, tritone |
| Type | Diminished chord |
Bdim across the keyboard
Piano, C3 to C5. Notes in this scale, low to high: D3 (flat 3), F3 (flat 5), B3 (1), D4 (flat 3), F4 (flat 5), B4 (1).
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Questions
What notes are in the Bdim chord?
Bdim (B diminished) has three notes: B, D and F. Its formula is 1, b3, b5. B is the root, D is the minor third and F is the tritone.
How do you play Bdim on piano?
Play B, D and F together. Root position: B D F · RH 1-3-5 · LH 5-3-1.
What key is Bdim in?
In major keys, Bdim is the vii° chord in C major. It is diatonic to those keys, so it fits songs in any of them.
What is the difference between Bdim and Bm?
Bdim is Bm with its 5th lowered a half step, from F# to F. That flat 5th is what gives it its tense sound.