D# sus2/A
The D# sus2 chord consists of the D# (Perfect unison), F (Major second) and A# (Perfect fifth) notes, with A as the bass note.

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