interval
E♭ minor second
E♭lowerF♭upperm21 half steps
One half step, written as a second: the smallest distance between two notes with different letters.
On the keyboard
What is true of it
E♭ up a minor second is F♭: 1 half step, and 2 letters counting both ends.
Turn it upside down — put the E♭ on top — and it becomes a major seventh. The two numbers always add to nine, and the two sizes to twelve.
It is a dissonance.
Every interval on E♭
E♭ → Fmajor second · dissonanceE♭ → G♭minor third · imperfect consonanceE♭ → Gmajor third · imperfect consonanceE♭ → A♭perfect fourth · perfect consonanceE♭ → Aaugmented fourth · dissonanceE♭ → B♭♭diminished fifth · dissonanceE♭ → B♭perfect fifth · perfect consonanceE♭ → C♭minor sixth · imperfect consonanceE♭ → Cmajor sixth · imperfect consonanceE♭ → D♭minor seventh · dissonanceE♭ → Dmajor seventh · dissonance