B 13/C

The B 13 chord consists of the B (Perfect unison), D# (Major third), F# (Perfect fifth), A (Minor seventh), C# (Major ninth) and G# (Major thirteenth) notes, with C as the bass note.

Piano keyboard showing the notes for a B 13/C chord

How to play the B 13/C chord

  1. Play C as the lowest bass note in the left hand
  2. Find B (Root) on the piano keyboard
  3. Add D# (Major third) — 4 semitones above B
  4. Add F# (Perfect fifth) — 7 semitones above B
  5. Add A (Minor seventh) — 10 semitones above B
  6. Add C# (Major ninth) — 14 semitones above B
  7. Add G# (Major thirteenth) — 21 semitones above B
  8. Press all 7 notes simultaneously to sound the B 13/C chord