The E-sharp major sixth-ninth chord (abbreviated "E#6/9 chord") is a five-note chord consisting of the notes E♯, G, B♯, C, and F. The chord is formed by adding a major sixth and a major ninth to a E-sharp major chord.
E-sharp major sixth-ninth chord
E♯ G B♯ C F
1 3 5 6 9
Pentad (five-note chord)