E major 13th chord
Emaj13 chord for piano with keyboard diagram.
Explanation: The E major thirteenth is a six-note chord (the 11th, A in the case of Emaj13, is normally excluded). For practical reasons the chord is normally played with omitted notes and/or inverted. It is often abbreviated as Emaj13 (not to be confused with E13).
Theory: The E major thirteenth chord is constructed by extending the major eleventh chord with a major thirteenth note.
Notes: E - G# - B - D# - F# - C#