Edim7 guitar chord
The third voice from the top lowered an octave. The dropped voice becomes the bass, which is why a string is skipped.
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About Edim7 — drop 3 voicings
Edim7 is E, G, Bb and Db — Edim with a diminished seventh stacked on top.
It sounds suspenseful and rootless. Three stacked minor thirds divide the octave evenly, so the same four notes spell four dim7 chords and the shape repeats every three frets.
Edim7 notes and formula
| E | G | Bb | Db |
|---|---|---|---|
| 1 | ♭3 | ♭5 | ♭♭7 |
Leading-tone or passing chord — it can resolve almost anywhere.
Also written E°7, Eo7 or E diminished 7. The same chord either way; which spelling you meet depends on who wrote the chart.
How to play Edim7
The same operation one voice further down: the third voice from the top falls an octave and becomes the bass.
That leaves a bigger hole under the top three notes, so a string gets skipped: the muted string in the middle is the shape, not a mistake.
Edim7 has 10 of them, on strings 5-3-2-1 and strings 6-4-3-2, from open position up to the 14th — every inversion the chord has: E in the bass, G in the bass, Bb in the bass and Db in the bass. The one to learn first is the Bb shape at the nut.
5 of them sit on strings 5-3-2-1, so you can run the inversions up one set without changing strings — which is the whole reason to learn them as a family rather than as separate grips.
Start with 012020 — no barre and 3 open strings. 1 of the 8 shapes here sits in open position. 2 of the 8 need a barre. Together they cover the neck from the 1st fret to the 15th.
| Frets | Where | Bass | Top | Hand |
|---|---|---|---|---|
| 012020 | open position | E, root position | E | 3 open strings |
| xx2323 | 2nd fret | E, root position | G | all fretted |
| xx5656 | 5th fret | G, 1st inversion | Bb | all fretted |
| x78686 | 6th fret | E, root position | Bb | all fretted |
| xx8989 | 8th fret | Bb, 2nd inversion | Db | all fretted |
| 12-x-11-12-11-12 | 11th fret | E, root position | E | barred |
| 12-13-14-12-14-12 | 12th fret | E, root position | E | barred |
| x-x-14-15-14-15 | 14th fret | E, root position | G | all fretted |
The same notes rebuilt from scratch give 7 shell, 14 drop 2 and 1 open string voicings, each on its own page.
Tensions. A shell of Edim7, root, third and seventh, leaves a string free, and the tones that belong over it are the 9 (F#), the 11 (A), the b13 (C) and the maj7 (D#).
How to use Edim7
A diminished seventh divides the octave evenly, so Edim7 has no single root and no single destination: it can lead to A or to F, and it is the same four notes either way.
What to play over Edim7
Every note of Edim7 is in E diminished and E half-whole diminished.
Chords near Edim7
Change one note of Edim7 and you have Edim (drop the sixth), Em6 (the flat fifth becomes a fifth), Em7b5 (the sixth becomes a flat seventh), EmMaj7b5 (the sixth becomes a major seventh) or Em/C# (the flat fifth becomes a fifth).
Edim7 is a diminished chord — root, minor third, flat fifth. Diminished and half-diminished chords on every root.
On Edim7’s sound and use this page follows Stefan Kostka, Dorothy Payne & Byron Almén, Tonal Harmony (McGraw-Hill, 8th ed., 2018). The shapes and the derived voicings come from different places, and both are explained in where the chords and the theory come from.