Eb m11
The Eb m11 chord consists of the Eb (Perfect unison), Gb (Minor third), Bb (Perfect fifth), Db (Minor seventh), F (Major ninth) and Ab (Perfect eleventh) notes.

How to play the Eb m11 chord
- Find Eb (Root) on the piano keyboard
- Add Gb (Minor third) — 3 semitones above Eb
- Add Bb (Perfect fifth) — 7 semitones above Eb
- Add Db (Minor seventh) — 10 semitones above Eb
- Add F (Major ninth) — 14 semitones above Eb
- Add Ab (Perfect eleventh) — 17 semitones above Eb
- Press all 6 notes simultaneously to sound the Eb m11 chord