G# maj13
The G# maj13 chord consists of the G# (Perfect unison), C (Major third), D# (Perfect fifth), G (Major seventh), A# (Major ninth) and F (Major thirteenth) notes.

How to play the G# maj13 chord
- Find G# (Root) on the piano keyboard
- Add C (Major third) — 4 semitones above G#
- Add D# (Perfect fifth) — 7 semitones above G#
- Add G (Major seventh) — 11 semitones above G#
- Add A# (Major ninth) — 14 semitones above G#
- Add F (Major thirteenth) — 21 semitones above G#
- Press all 6 notes simultaneously to sound the G# maj13 chord