Fig. 1 · F to Ab

interval

F minor third

FlowerA♭upperm33 half steps

Three half steps. The interval that makes a triad minor.

On the keyboard

Fig. 2

What is true of it

F up a minor third is A♭: 3 half steps, and 3 letters counting both ends.

Turn it upside down — put the F 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 F

F → G♭minor second · dissonance F → Gmajor second · dissonance F → Amajor third · imperfect consonance F → B♭perfect fourth · perfect consonance F → Baugmented fourth · dissonance F → C♭diminished fifth · dissonance F → Cperfect fifth · perfect consonance F → D♭minor sixth · imperfect consonance F → Dmajor sixth · imperfect consonance F → E♭minor seventh · dissonance F → Emajor seventh · dissonance

C m3 C♯ m3 D♭ m3 D m3 D♯ m3 E♭ m3 E m3 F♯ m3 all 204