G m7
The G m7 chord consists of the G (Perfect unison), A# (Minor third), D (Perfect fifth) and F (Minor seventh) notes.

How to play the G m7 chord
- Find G (Root) on the piano keyboard
- Add A# (Minor third) — 3 semitones above G
- Add D (Perfect fifth) — 7 semitones above G
- Add F (Minor seventh) — 10 semitones above G
- Press all 4 notes simultaneously to sound the G m7 chord