Fig. 1 · E to D

interval

E minor seventh

ElowerDupperm710 half steps

Ten half steps. The interval that sits on top of a dominant seventh chord.

On the keyboard

ED
Fig. 2

What is true of it

E up a minor seventh is D: 10 half steps, and 7 letters counting both ends.

Turn it upside down — put the E on top — and it becomes a major second. The two numbers always add to nine, and the two sizes to twelve.

It is a dissonance.

Every interval on E

E → Fminor second · dissonanceE → F♯major second · dissonanceE → Gminor third · imperfect consonanceE → G♯major third · imperfect consonanceE → Aperfect fourth · perfect consonanceE → A♯augmented fourth · dissonanceE → B♭diminished fifth · dissonanceE → Bperfect fifth · perfect consonanceE → Cminor sixth · imperfect consonanceE → C♯major sixth · imperfect consonanceE → D♯major seventh · dissonance

C m7C♯ m7D♭ m7D m7D♯ m7E♭ m7F m7F♯ m7all 204