G# aug/D#
The G# aug chord consists of the G# (Perfect unison), C (Major third) and E (Minor sixth) notes, with D# as the bass note.

How to play the G# aug/D# chord
- Play D# as the lowest bass note in the left hand
- Find G# (Root) on the piano keyboard
- Add C (Major third) — 4 semitones above G#
- Add E (Minor sixth) — 8 semitones above G#
- Press all 4 notes simultaneously to sound the G# aug/D# chord