Intervals make up a melody; an interval is the distance from one note to another.
Distance and Quality
Intervals describe how far away one note is from another and what a chord sounds like. A major interval is always one step larger than a minor interval.
- An interval’s distance is described with a number that indicates the distance from one note to another. According to the diatonic scale, taking every scalic step into consideration. (E.g. D up to E is a 2nd.)
- An interval’s quality specifically classifies each interval. (Although an interval may have more than one name.)
E.g. C to E flat (going up) is a Minor 3rd because a 3rd is the distance from C to E flat from the bottom up, and Minor is the quality of the interval. C to E (going up) is a Major 3rd because a 3rd is the distance.