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A piano reference: chords, scales, theory. Full MIDI.

C 7♭5♯9

Notes: C – E – G♭ – B♭ – D♯
Degrees: 1 – 3 – ♭5 – ♭7 – ♯9
Also written: C7♭5♯9Lower D♯ to D and it is C9♭5; raise G♭ to G and it is C7♯9. C, E and B♭ do not move.

Construction

C 7♭5♯9 = Root + Major 3rd + Diminished 5th + Minor 7th + Minor 3rd = C, E, G♭, B♭, D♯
NoteIntervalDegree
CRoot1
EMajor 3rd3
G♭Diminished 5th♭5
B♭Minor 7th♭7
D♯Minor 3rd♭3

How to Play the C 7♭5♯9

Right Hand (RH)

Place your right hand over the keys with the thumb on the root. Use the fingering: 1 – 2 – 3 – 4 – 5

Left Hand (LH)

For the left hand, start with your pinky on the root. Use the fingering: 5 – 4 – 3 – 2 – 1

C 7♭5♯9 : Frequently Asked Questions

What is the C 7♭5♯9 chord on piano?
The C 7♭5♯9 chord contains the notes C – E – G♭ – B♭ – D♯. On piano, play these notes together to sound the chord.
What notes are in the C 7♭5♯9 chord?
The C 7♭5♯9 chord (C7♭5♯9) contains 5 notes: C, E, Gb, Bb, D#. Formula: R-M3-d5-m7-A9.
How is C7♭5♯9 used in music?
C7♭5♯9 is used in jazz, fusion, and contemporary music to add harmonic color. It appears as a dominant or tonic chord depending on context.
What is the scale degree formula for C7♭5♯9?
C7♭5♯9 uses scale degrees 1-3-b5-b7-#9, giving it its distinctive sound.

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