Bb 9(b5)/Fb
The Bb 9(b5) chord consists of the Bb (Perfect unison), D (Major third), Fb (Diminished fifth), Ab (Minor seventh) and C (Major ninth) notes, with Fb as the bass note.
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How to play the Bb 9(b5)/Fb chord
- Play Fb as the lowest bass note in the left hand
- Find Bb (Root) on the piano keyboard
- Add D (Major third) — 4 semitones above Bb
- Add Fb (Diminished fifth) — 6 semitones above Bb
- Add Ab (Minor seventh) — 10 semitones above Bb
- Add C (Major ninth) — 14 semitones above Bb
- Press all 6 notes simultaneously to sound the Bb 9(b5)/Fb chord