Piano chord · Sevenths
C♯ half-diminished 7th chord on piano
Right hand: C♯ (1), E (2), G (3), B (5)
How to play C♯m7♭5 on piano: the keys to press, which fingers to use, inversions and how it’s written on the staff.
Dark and unresolved; often the ii chord in a minor key.
C♯m7♭5 is the viiø7 chord in D major. In minor keys: iiø7 in B minor.
- Notes
- C♯EGB
- Formula
- 1♭3♭5♭7
- Built from
- root · minor 3rd · diminished 5th · minor 7th
Piano
Root position · numbers are finger numbers
How to play it
Right handC♯1 · thumbE2 · indexG3 · middleB5 · pinky
Left handC♯5 · pinkythe root, an octave lower
Finger numbers: 1 thumb · 2 index · 3 middle · 4 ring · 5 pinky. Inversions use the same notes with a different one on the bottom — they help you move smoothly between chords. Tap any key to hear it.
Tips for playing C♯m7♭5 on piano
On piano, C♯m7♭5 has one black key (C♯) and three white keys.
