G# maj7/F#
The G# maj7 chord consists of the G# (Perfect unison), C (Major third), D# (Perfect fifth) and G (Major seventh) notes, with F# as the bass note.

How to play the G# maj7/F# chord
- Play F# 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 D# (Perfect fifth) — 7 semitones above G#
- Add G (Major seventh) — 11 semitones above G#
- Press all 5 notes simultaneously to sound the G# maj7/F# chord