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C#m7b5 Piano Chord

A key chord of minor jazz. Naturally occurs as the II degree in minor keys (in ii–V–i progressions). Less tense than the fully diminished seventh chord.

Piano

Recommended voicing
C#4 · E4 · G4 · B4

How to play the C#m7b5 chord on piano

Play the recommended root-position voicing with the right hand: C#4, E4, G4 and B4. Suggested fingering is 1–2–3–5 (1 is the thumb).

Notation for C#m7b5 chord

Other names: C# minor 7th flat 5, C# half-diminished, C#ø7, C# m7♭5

Music theory name: half-diminished seventh chord

Common name: C# half-diminished chord

Intervals and tones in C#m7b5 chord

Note Interval
C# Root
E Minor 3rd
G Diminished 5th
H Minor 7th

Inversions

1st inversion
E4 · G4 · B4 · C#5
2nd inversion
G4 · B4 · C#5 · E5

More chords with C# as the root

The same chord type in other keys

Songs using C#m7b5

Dobré ráno, milá
David Stypka
Ještě tě mám plnou náruč
Jiří Korn