G# m3/B
The G# m3 chord consists of the G# (Perfect unison) and B (Minor third) notes, with B as the bass note.

How to play the G# m3/B chord
- Play B as the lowest bass note in the left hand
- Find G# (Root) on the piano keyboard
- Add B (Minor third) — 3 semitones above G#
- Press all 3 notes simultaneously to sound the G# m3/B chord