D m6
The D m6 chord consists of the D (Perfect unison), F (Minor third), A (Perfect fifth) and B (Major sixth) notes.

How to play the D m6 chord
- Find D (Root) on the piano keyboard
- Add F (Minor third) — 3 semitones above D
- Add A (Perfect fifth) — 7 semitones above D
- Add B (Major sixth) — 9 semitones above D
- Press all 4 notes simultaneously to sound the D m6 chord