interval
E major sixth
ElowerC♯upperM69 half steps
Nine half steps. The minor third turned upside down.
On the keyboard
What is true of it
E up a major sixth is C♯: 9 half steps, and 6 letters counting both ends.
Turn it upside down — put the E on top — and it becomes a minor third. The two numbers always add to nine, and the two sizes to twelve.
It is a imperfect consonance.
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 → Dminor seventh · dissonanceE → D♯major seventh · dissonance