Bb 9

The Bb 9 chord consists of the Bb (Perfect unison), D (Major third), F (Perfect fifth), Ab (Minor seventh) and C (Major ninth) notes.

Piano keyboard showing the notes for a Bb 9 chord

How to play the Bb 9 chord

  1. Find Bb (Root) on the piano keyboard
  2. Add D (Major third) — 4 semitones above Bb
  3. Add F (Perfect fifth) — 7 semitones above Bb
  4. Add Ab (Minor seventh) — 10 semitones above Bb
  5. Add C (Major ninth) — 14 semitones above Bb
  6. Press all 5 notes simultaneously to sound the Bb 9 chord

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