interval
A minor third
AlowerCupperm33 half steps
Three half steps. The interval that makes a triad minor.
On the keyboard
What is true of it
A up a minor third is C: 3 half steps, and 3 letters counting both ends.
Turn it upside down — put the A on top — and it becomes a major sixth. The two numbers always add to nine, and the two sizes to twelve.
It is a imperfect consonance.
Every interval on A
A → B♭minor second · dissonanceA → Bmajor second · dissonanceA → C♯major third · imperfect consonanceA → Dperfect fourth · perfect consonanceA → D♯augmented fourth · dissonanceA → E♭diminished fifth · dissonanceA → Eperfect fifth · perfect consonanceA → Fminor sixth · imperfect consonanceA → F♯major sixth · imperfect consonanceA → Gminor seventh · dissonanceA → G♯major seventh · dissonance