A minor 11th chord
Am11 chord for piano with keyboard diagram.
Explanation: The A minor eleventh is a six-note chord. For practical reasons the chord is normally played with omitted notes and/or inverted. The chord is often abbreviated as Am11 (alternatively Amin11).
Omissions: Am11(no3): A - E - G - B - D; Am11(no9): A - C - E - G - D.
Theory: The A minor eleventh chord is constructed by adding a third to a minor ninth chord.
Notes: A - C - E - G - B - D