B m9(#11)

The B m9(#11) chord consists of the B (Perfect unison), D (Minor third), F# (Perfect fifth), A (Minor seventh), C# (Major ninth) and F (Augmented eleventh) notes.

Piano keyboard showing the notes for a B m9(#11) chord

How to play the B m9(#11) chord

  1. Find B (Root) on the piano keyboard
  2. Add D (Minor third) — 3 semitones above B
  3. Add F# (Perfect fifth) — 7 semitones above B
  4. Add A (Minor seventh) — 10 semitones above B
  5. Add C# (Major ninth) — 14 semitones above B
  6. Add F (Augmented eleventh) — 18 semitones above B
  7. Press all 6 notes simultaneously to sound the B m9(#11) chord