Piano chord · Ninths
C dominant 7th sharp 9 chord on piano
Right hand: C (1), E (2), G (3), B♭ (4), D♯ (5)
How to play C7♯9 on piano: the keys to press, which fingers to use, inversions and how it’s written on the staff.
The “Hendrix chord” — gritty, with major and minor 3rds clashing.
- Notes
- CEGB♭D♯
- Formula
- 135♭7♯9
- Built from
- root · major 3rd · perfect 5th · minor 7th · augmented 9th
Piano
Root position · numbers are finger numbers
How to play it
Right handC1 · thumbE2 · indexG3 · middleB♭4 · ringD♯5 · pinky
Left handC5 · 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 C7♯9 on piano
On piano, C7♯9 has two black keys (B♭ and D♯) and three white keys. In root position it spans more than an octave, so many pianists play the root with the left hand and the rest with the right.
