E#7(b9) chord
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
E♯7(b9)
Alternative symbol
E♯7b9
Type
pentad (five-note chord)