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Chord · E Dominant 7th

E7 Chord

E7 is E, G#, B and Dtense; wants to resolve down a fifth. Blues and jazz workhorse.

Hear it

E7 on every instrument

The same 4 notes, 6 sets of hands. Open a diagram for alternate shapes, audio and the mistakes to avoid.

21EADGBE
Guitar3 voicings
CDEFGAB
Piano5 voicings
123GCEA
Ukulele4 voicings
21EADG
Bass1 voicing
12GDAE
Mandolin3 voicings
×21GDGBD
Banjo2 voicings

What E7 is made of

E7 (E seventh) is built from the notes E, G#, B, D, with the interval pattern 1, 3, 5, b7.

Stack 1, 3, 5 and b7 on a root of E and you get E, G#, B and D. That interval recipe is what makes the chord a seventh chord — move the same shape to another root and the character travels with it, which is why C7 sounds like a transposed E7.

Dominant 7th: Tense; wants to resolve down a fifth. Blues and jazz workhorse.

Spelling: the notes above are written the way a score would write them, not simplified to the nearest piano key. That is why this chord is spelled with G rather than its enharmonic equivalent.

Keys that contain E7

All 4 notes sit inside the scale of 2 keys. The roman numeral marks the degree the chord is rooted on.

Other chords on E

Same root, different colour.

The same seventh shape, moved

The identical interval recipe, built on other roots.

Questions people ask about E7

What notes are in the E7 chord?
E7 is made of E, G#, B and D — the 1, 3, 5 and b7 degrees of a seventh chord built on E.
What keys use the E7 chord?
Every note of E7 belongs to 2 keys: A Major (V), F# Minor (VII). The roman numeral is the scale degree the chord is rooted on.
How do you play E7 on guitar and piano?
This page shows E7 on guitar, piano, ukulele, bass, mandolin and banjo — 18 voicings in total. Each diagram links to the full instrument page with alternate shapes, audio and common mistakes.

Learn the theory behind it

Why E7 behaves the way it does — the guides that explain the chord instead of just spelling it.

Functional Harmony: Three Roles, One EngineWhat a seventh chord is for — tension, resolution, and the seat it takes in the key.6 min readThe 12-Bar Blues — Three Chords, A Century of HitsSeventh chords are the whole sound of the blues. Twelve bars is where to hear it.7 min read