Fm7b5 chord (F half-diminished seventh) on piano
Fm7b5 (F half-diminished seventh) has four notes: F, A flat, C flat and E flat. Its formula is 1, b3, b5, b7. In major keys, Fm7b5 is the viiø7 chord in F# major.
Fm7b5 inversions and fingering
F Ab Cb Eb · RH 1-2-3-5 · LH 5-3-2-1
Ab Cb Eb F · RH 1-2-4-5 · LH 5-3-2-1
Cb Eb F Ab · RH 1-2-3-5 · LH 5-3-2-1
Eb F Ab Cb · RH 1-2-3-5 · LH 5-4-2-1
F Ab Eb · LH 5-3-1
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| Symbol | Fm7b5 |
|---|---|
| Also written | Fø, Fø7, Fmin7b5, F-7b5 |
| Notes | F Ab Cb Eb |
| Formula | 1 b3 b5 b7 |
| Intervals | root, minor third, tritone, minor seventh |
| Type | Half-diminished seventh chord |
Fm7b5 across the keyboard
Piano, C3 to C5. Notes in this scale, low to high: Eb3 (flat 7), F3 (1), Ab3 (flat 3), Cb3 (flat 5), Eb4 (flat 7), F4 (1), Ab4 (flat 3), Cb4 (flat 5).
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Questions
What notes are in the Fm7b5 chord?
Fm7b5 (F half-diminished seventh) has four notes: F, A flat, C flat and E flat. Its formula is 1, b3, b5, b7. F is the root, Ab is the minor third, Cb is the tritone and Eb is the minor seventh.
How do you play Fm7b5 on piano?
Play F, Ab, Cb and Eb together. Root position: F Ab Cb Eb · RH 1-2-3-5 · LH 5-3-2-1.
What key is Fm7b5 in?
In major keys, Fm7b5 is the viiø7 chord in F# major. It is diatonic to those keys, so it fits songs in any of them.
What is the difference between Fm7b5 and Fdim7?
Fm7b5 and Fdim7 share F, Ab and Cb. Fm7b5 has Eb, the flat 7th, where Fdim7 has Ebb, the double flat 7th.