D# m7/A
The D# m7 chord consists of the D# (Perfect unison), F# (Minor third), A# (Perfect fifth) and C# (Minor seventh) notes, with A as the bass note.

How to play the D# m7/A chord
- Play A as the lowest bass note in the left hand
- Find D# (Root) on the piano keyboard
- Add F# (Minor third) — 3 semitones above D#
- Add A# (Perfect fifth) — 7 semitones above D#
- Add C# (Minor seventh) — 10 semitones above D#
- Press all 5 notes simultaneously to sound the D# m7/A chord