C# m(maj13)(#11)

The C# m(maj13)(#11) chord consists of the C# (Perfect unison), E (Minor third), G# (Perfect fifth), C (Major seventh), D# (Major ninth), G (Augmented eleventh) and A# (Major thirteenth) notes.

Piano keyboard showing the notes for a C# m(maj13)(#11) chord

How to play the C# m(maj13)(#11) chord

  1. Find C# (Root) on the piano keyboard
  2. Add E (Minor third) — 3 semitones above C#
  3. Add G# (Perfect fifth) — 7 semitones above C#
  4. Add C (Major seventh) — 11 semitones above C#
  5. Add D# (Major ninth) — 14 semitones above C#
  6. Add G (Augmented eleventh) — 18 semitones above C#
  7. Add A# (Major thirteenth) — 21 semitones above C#
  8. Press all 7 notes simultaneously to sound the C# m(maj13)(#11) chord