The E♯ m7♭5 Chord Explained
E-sharp minor seventh flat five is a Half-Diminished chord built from the notes E-sharp, G-sharp, B, and D-sharp. Its root is E-sharp, and its interval number formula is 1-♭3-♭5-♭7, which gives you the interval names root, minor third, diminished fifth, and minor seventh. You may also see it written as E♯m7♭5, E♯ø7, or plain-text E-sharp half-diminished seventh. If you look at the widget above, you can use it to see and hear how these four notes combine, and if you want to learn more about how these distances work, see chord intervals.
E♯ m7♭5 Alternate Names
- E♯m7♭5
- E♯ø7
- E-sharp half-diminished seventh
E♯ m7♭5 Chord Notes
E♯ m7♭5 Chord Formula
E♯ m7♭5 Chord Notation
How To Use E♯ m7♭5 In Music
Because this chord contains a tense diminished fifth along with a softer minor seventh, it sounds unsettled, thoughtful, and slightly dark rather than fully harsh. It is often used to lead toward a more stable chord, especially in minor keys, where it commonly appears in progressions like iiø7–V7–i or iv–viiø7–i. For example, E-sharp minor seventh flat five could function as iiø7 moving to F-sharp7 and then B minor, or as a passing color between surrounding chords that reshape its mood. When the chords around E♯m7♭5 are gentle, it can feel mysterious and elegant, but next to stronger tension it can sound more dramatic. In that way, it shares some color with a diminished chord, while still keeping its own half-diminished character.
E♯ m7♭5 Chord Inversions
Another helpful idea for beginners is inversion, which means the chord keeps the same notes but starts from a different note instead of the root. For E-sharp minor seventh flat five, root position is E-sharp-G-sharp-B-D-sharp, while the inversions are first inversion G-sharp-B-D-sharp-E-sharp, second inversion B-D-sharp-E-sharp-G-sharp, and third inversion D-sharp-E-sharp-G-sharp-B. These inversions do not change the chord’s name quality, but they do change the feel: some sound smoother, lighter, or more connected to the next chord. Musicians use inversions to make bass lines flow better, reduce large jumps, and create a more polished harmonic movement. You may also hear close voicings or wider spacings of the same chord tones, which can make the chord feel denser or more open.
