Which notes are in the C#m(add9) chord?

C#m(add9) contains the notes C#, E, G# and D#. Relative to the root these are the degrees 1 – ♭3 – 5 – 9.

Are C#m(add9) and Dbm(add9) the same chord?

Yes. C#m(add9) and Dbm(add9) are enharmonically identical — the spelling differs but the frets and keys are the same. Which name is used depends on the key of the piece.

C# minor added 9th · Piano

C#m(add9) Chord on Piano

The C#m(add9) chord (C# minor added 9th) is built from the notes C#, E, G# and D#. The keyboard diagram below shows exactly which keys to press. The same chord is also written Dbm(add9); both spellings sound identical.

Chord diagrams

C#m(add9)

Notes in this chord

C♯
E
G♯
D♯

Degrees: 1 – ♭3 – 5 – 9

Also written: Dbm(add9)

How to play

To play C#m(add9) on piano, press C#, E, G# and D# together. In root position the lowest note is C#, and the finger numbers follow the keys left to right in the diagram.

Theory behind the chord

Minor add9 chords add the ninth to a plain minor triad without a seventh. The added tone brightens the minor colour just enough to keep it open and cinematic rather than sad. On C#m(add9) this structure sits on the root C#, so the degrees 1 – ♭3 – 5 – 9 map onto C#, E, G# and D#.

Frequently asked questions

Which notes are in the C#m(add9) chord?: C#m(add9) contains the notes C#, E, G# and D#. Relative to the root these are the degrees 1 – ♭3 – 5 – 9.
Are C#m(add9) and Dbm(add9) the same chord?: Yes. C#m(add9) and Dbm(add9) are enharmonically identical — the spelling differs but the frets and keys are the same. Which name is used depends on the key of the piece.

Practise C#m(add9) on your phone

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