Eb addb9/D
The Eb addb9 chord consists of the Eb (Perfect unison), G (Major third), Bb (Perfect fifth) and Fb (Minor ninth) notes, with D as the bass note.

How to play the Eb addb9/D chord
- Play D as the lowest bass note in the left hand
- Find Eb (Root) on the piano keyboard
- Add G (Major third) — 4 semitones above Eb
- Add Bb (Perfect fifth) — 7 semitones above Eb
- Add Fb (Minor ninth) — 13 semitones above Eb
- Press all 5 notes simultaneously to sound the Eb addb9/D chord