C sharp major sharp eleventh (lydian) piano chord - C#maj9#11

The C sharp major sharp eleventh (lydian) chord is a 6-note chord consisting of the notes C#, E#, G#, B#, D# and F##.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as C#maj9#11.

Interactive piano diagram for the C sharp major sharp eleventh (lydian) chord

Piano keyboard displaying the C sharp major sharp eleventh (lydian) chord with the notes E#FC#DbG#AbB#CGD#Eb

Reduced chords

Chords that are a subset of C#maj9#11. These contain less notes but all of them are included in C#maj9#11.

Scales with C#maj9#11

Below you find all scales that include C#maj9#11:

  • lydian
  • ichikosucho
  • messiaen's mode #3
  • chromatic

C sharp major sharp eleventh (lydian) 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#maj9#11 chord. Feel free to save or share the image as needed.

Piano chord chart for the C sharp major sharp eleventh (lydian) chord (C#maj9#11). The notes C#, E#, G#, B#, D# and F## are highlighted.