The E-sharp dominant minor ninth chord (abbreviated "E#7(b9) chord") is a five-note chord consisting of the notes E, G, B, D, and F. The chord is formed by adding a major ninth to a E-sharp dominant seventh chord.

In practice, the fifth (B) is often omitted from the E#7(b9) chord because it's not always possible to play all notes simultaneously.

Name
E-sharp dominant minor ninth chord
Notes
E G B D F
Intervals
1 3 5 7 9
Chord symbol
E7(b9)
Alternative symbol
E7b9
Type
pentad (five-note chord)

E#7(b9) chord on piano

E#7(b9) chord on guitar

E#7(b9) chord on ukulele

E#7(b9) chord on the staff