C sharp sixth added ninth piano chord - C#6add9

The C sharp sixth added ninth chord is a 5-note chord consisting of the notes C#, E#, G#, A# and D#.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as C#6add9.

Interactive piano diagram for the C sharp sixth added ninth chord

Piano keyboard displaying the C sharp sixth added ninth chord with the notes E#FC#DbG#AbA#BbD#Eb

Extended Chords

Chords that are a superset of C#6add9. The chords include more notes but always C#, E#, G#, A# and D#.

Reduced chords

Chords that are a subset of C#6add9. These contain less notes but all of them are included in C#6add9.

Scales with C#6add9

Below you find all scales that include C#6add9:

  • major
  • major blues
  • bebop
  • lydian
  • mixolydian
  • lydian dominant
  • bebop minor
  • bebop major
  • ichikosucho
  • composite blues
  • chromatic

C sharp sixth added ninth piano chord chart image

In case you prefer a non-interactive variant of the chord chart, we've embedded a PNG image below that shows the notes for the the C#6add9 chord. Feel free to save or share the image as needed.

Piano chord chart for the C sharp sixth added ninth chord (C#6add9). The notes C#, E#, G#, A# and D# are highlighted.