E minor ninth chord
Em9 chord for piano with keyboard diagram.
Explanation: The E minor ninth is a five note chord. For practical reasons the chord is normally played with omitted notes and/or inverted. The chord is often abbreviated as Em9.
Theory: The Em9 chord is constructed with a root, a minor third, a perfect fifth, a minor seventh and a major ninth.
Notes: E - G - B - D - F#