Melodic Features: Contour, Range, and Motion

You can hum a melody's outline even when every pitch is wrong, because recognition rides on shape, not exact notes. Contour is that shape: the pattern of rises, falls, and repeats you'd get by plotting pitch against time and connecting the dots. Two melodies can share a contour while living in different keys, because contour only cares about direction, not distance.

Motion describes how a melody gets from one note to the next. Conjunct motion moves by step, adjacent notes on the staff, and sounds smooth, connected, vocal. Disjunct motion moves by leap, skipping over scale degrees, and sounds angular, energetic, instrumental. Most real melodies mix both: steps to connect, leaps to punctuate. Range is the distance between a melody's lowest and highest pitch, usually named as an interval. Tessitura is related but different: it's where most of the pitches cluster, the comfortable middle the melody keeps returning to, even if a few outlying notes stretch the range wider.

These three ideas work together on one picture. Graph the pitches in order, and the contour is the line itself, the range is the vertical distance between the lowest and highest points, and the tessitura is the band where the line spends most of its time. This connects directly to how melodies get built and varied: a composer can take a disjunct leap and fill it in stepwise, which smooths the contour and increases conjunct motion without touching the range or the first and last notes of that passage. Recognizing these features is how you compare two melodies, or hear how a composer transforms a theme while keeping its bones intact.