Melodic and harmonic
One after the other, or together
Two notes played one after the other make a melodic interval. Played together, they make a harmonic interval. A harmonic interval is written one note above the other.
Quick check
Is this interval melodic or harmonic?
Counted the same way
A melodic or a harmonic interval is numbered the same way. Count the letters from the lower note up, and count both notes.
Quick check
What is the number of this interval?
Remember
- One after the other: melodic. Together: harmonic.
- Both are numbered the same way: count the letters, both notes included.