Db sus2/Fb
The Db sus2 chord consists of the Db (Perfect unison), Eb (Major second) and Ab (Perfect fifth) notes, with Fb as the bass note.

How to play the Db sus2/Fb chord
- Play Fb as the lowest bass note in the left hand
- Find Db (Root) on the piano keyboard
- Add Eb (Major second) — 2 semitones above Db
- Add Ab (Perfect fifth) — 7 semitones above Db
- Press all 4 notes simultaneously to sound the Db sus2/Fb chord