Edim7 Chord on Guitar
Edim7 = E – G – A# – C# (Root, Minor 3rd, Tritone, Major 6th)
Edim7 completes the diminished triad with a diminished seventh on top, and like every diminished-seventh chord it's built entirely from stacked minor thirds — a symmetry that means this exact fingering, shifted three frets at a time, produces the same pitch collection spelled from a different root.
Four notes make up this chord: E, G, A#, and C# (or Db, depending on spelling) — root, minor third, diminished fifth, diminished seventh. Functionally it's vii°7 of F minor, the tense leading-tone chord that jazz and classical guitarists reach for constantly whenever the surrounding harmony needs to pivot somewhere unexpected, since the chord's symmetry gives it several equally convincing resolutions.
Fingerings
Open Position
How to Practice It
The A, D, and B strings each take one added finger, all clustered near each other in open position, so despite the chord's dense theoretical name the physical shape stays compact and manageable. A worthwhile exercise: slide the whole fingering up three frets, say its new name out loud, slide again, and keep going — a quick way to feel diminished-seventh symmetry in the hand rather than just reading about it.
Common Progressions
- Edim7 – Fm (vii°7 – i, the classic leading-tone resolution)
- Cm – Edim7 – Fm (v – vii°7 – i)
- Bbm – Edim7 – Fm (iv – vii°7 – i)
- Fm – Edim7 – Fm (a passing diminished-seventh color around the minor tonic)
FAQ
- Why does a measured minor-third gap between every note matter here?
- It's what makes the chord symmetrical: since E to G, G to A#, and A# to C# are each a minor third, none of the four notes is structurally special, and swapping which one gets called the root just changes the chord's spelling, not its sound.
- Where does Edim7 resolve?
- Its most direct pull is up a half step into F minor, since E functions as that key's leading tone — the exact relationship any diminished seventh built on a leading tone has to the tonic sitting right above it.
- Is Edim7 easy to play in open position?
- Yes — the three added fingers land close together, and having no barre to sustain makes it a considerably gentler shape to hold than the same fingering barred at D#dim7's eleventh fret.
- How do jazz musicians take advantage of chords like this one?
- A single diminished-seventh shape can plausibly resolve toward four unrelated keys, so composers use that ambiguity to slip smoothly from one harmonic area into a distant one without any jarring jump.
- How does Edim7 relate to Gdim7, A#dim7, and C#dim7?
- Those three names, along with Edim7 itself, all describe one identical set of four pitches; which label gets used in a given passage comes down to which note the composer wants the ear to register as home.
- Is Edim7 common in typical rock or folk guitar playing?
- Rarely — its dense tension and flexible resolutions get put to more deliberate use in jazz, musical theater, and classical-leaning writing than the average rock or folk chord progression calls for.
- What's a good way to practice this chord's symmetry hands-on?
- Try walking the identical fingering up the neck in three-fret jumps, naming the new root at each stop — a far more concrete way to internalize the pattern than simply reading that the chord repeats itself.
Edim7 on other instruments: Edim7 on Piano. Related: how chords are built, chord finder.