Cm7b5 chord (C half-diminished seventh) on piano
Cm7b5 (C half-diminished seventh) has four notes: C, E flat, G flat and B flat. Its formula is 1, b3, b5, b7. In major keys, Cm7b5 is the viiø7 chord in Db major.
Cm7b5 inversions and fingering
C Eb Gb Bb · RH 1-2-3-5 · LH 5-3-2-1
Eb Gb Bb C · RH 1-2-4-5 · LH 5-3-2-1
Gb Bb C Eb · RH 1-2-3-5 · LH 5-3-2-1
Bb C Eb Gb · RH 1-2-3-5 · LH 5-4-2-1
C Eb Bb · LH 5-3-1
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| Symbol | Cm7b5 |
|---|---|
| Also written | Cø, Cø7, Cmin7b5, C-7b5 |
| Notes | C Eb Gb Bb |
| Formula | 1 b3 b5 b7 |
| Intervals | root, minor third, tritone, minor seventh |
| Type | Half-diminished seventh chord |
Cm7b5 across the keyboard
Piano, C3 to C5. Notes in this scale, low to high: C3 (1), Eb3 (flat 3), Gb3 (flat 5), Bb3 (flat 7), C4 (1), Eb4 (flat 3), Gb4 (flat 5), Bb4 (flat 7), C5 (1).
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Questions
What notes are in the Cm7b5 chord?
Cm7b5 (C half-diminished seventh) has four notes: C, E flat, G flat and B flat. Its formula is 1, b3, b5, b7. C is the root, Eb is the minor third, Gb is the tritone and Bb is the minor seventh.
How do you play Cm7b5 on piano?
Play C, Eb, Gb and Bb together. Root position: C Eb Gb Bb · RH 1-2-3-5 · LH 5-3-2-1.
What key is Cm7b5 in?
In major keys, Cm7b5 is the viiø7 chord in Db major. It is diatonic to those keys, so it fits songs in any of them.
What is the difference between Cm7b5 and Cdim7?
Cm7b5 and Cdim7 share C, Eb and Gb. Cm7b5 has Bb, the flat 7th, where Cdim7 has Bbb, the double flat 7th.