How do you write a shapely melody and develop a small motif into a whole paragraph of music, including when setting words?
Compose effective melodies and develop motifs using contour, phrasing and cadence, sequence, inversion, augmentation and diminution, and apply these to word-setting
A focused answer to the H2 Music composing outcome on melody and motif. Melodic contour, balanced phrasing and cadence, motivic development by repetition, sequence, inversion, augmentation and diminution, and the basics of word-setting (syllabic and melismatic, stress and word-painting).
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What this dot point is asking
SEAB wants you to compose shapely, singable melodies and to develop a small motif into an extended, coherent line, including when you are setting words. The central insight is motivic economy: strong melodic writing usually grows a whole paragraph from one short idea through varied repetition (sequence, inversion, augmentation, diminution), rather than stringing together unrelated tunes. Your task is to know the shaping principles, the developmental devices and the basics of fitting music to text.
The answer
The musical concept: melodic shape and phrasing
A good melody is designed, not random:
- Contour: a clear overall shape with a single main climax, often a high point placed late in the line, toward which the melody rises and from which it falls away.
- Phrasing: balanced phrases, commonly an antecedent (question, ending on an imperfect cadence) answered by a consequent (answer, ending on a perfect cadence), often four bars plus four bars.
- Step and leap: mostly stepwise (conjunct) motion for singability, with a few well-placed leaps for interest; a leap is usually filled in or followed by stepwise motion in the opposite direction.
- Range: kept within a comfortable, singable compass.
The technique: developing a motif
A motif is the smallest memorable musical idea, a distinctive shape of pitch and rhythm. It is developed by:
- Repetition: restating it unchanged, for emphasis.
- Sequence: restating it at a different pitch level, stepping up or down, to build momentum.
- Inversion: mirroring its contour (a rising shape becomes falling) while keeping the intervals.
- Augmentation: stating it in longer note values, broadening it (often at a climax).
- Diminution: stating it in shorter note values, quickening it.
Used together, these turn one cell into a unified paragraph.
The technique: word-setting
When a melody carries text, the music must serve the words:
- Stress: put strong syllables on strong beats and on higher or longer notes; weak syllables fall on weak beats.
- Syllabic versus melismatic: syllabic setting gives one note per syllable (clear, good for narrative); melismatic setting spreads many notes over one syllable (florid, expressive).
- Word-painting: illustrate the meaning, a rising line on a word like ascend, a dissonance on a word of pain, a melisma on a word like running.
- Breath and punctuation: place rests, breaths and cadences at the ends of lines and at punctuation.
Named repertoire
Folk and hymn tunes model clear contour and phrasing; Schubert's songs model sensitive word-setting; Baroque arias model melisma and word-painting.
Examples in context
Example 1. Schubert, Lieder. Schubert's songs are models of word-setting: the vocal line follows the natural stress and rhythm of the German text, mixes syllabic clarity with expressive touches, and uses melodic shape and the piano accompaniment to illustrate the poem's images, showing melody and text working as one.
Example 2. Bach, fugue and aria writing. Bach develops a single subject or motif through sequence, inversion, augmentation and diminution across an entire movement, the clearest demonstration of motivic economy, while his arias show extended melismas placed on important or pictorial words.
Try this
Q1. Name three ways a motif can be developed. [2 marks]
- Cue. Any three of: repetition, sequence, inversion, augmentation, diminution (also fragmentation or rhythmic variation).
Q2. Explain the difference between syllabic and melismatic word-setting. [2 marks]
- Cue. Syllabic setting gives one note per syllable (clear, narrative); melismatic setting spreads many notes over a single syllable (florid, expressive).
Q3. Describe two features that give a melody a clear, singable shape. [3 marks]
- Cue. A clear contour with a single main climax leading the ear to a high point, balanced phrasing (antecedent and consequent) shaped by cadences, and predominantly stepwise motion within a comfortable range with leaps filled in. (Any two explained.)
Exam-style practice questions
Practice questions written in the style of SEAB exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
Original8 marksA composer states a two-bar motif, then repeats it a step higher, then turns its rising shape into a falling one, and finally states it in notes of double the length under a climactic high point. Name each developmental device used, and explain how the passage builds a coherent melody from one idea.Show worked answer →
Name the devices. Repeating the motif a step higher is sequence (specifically a rising sequence). Turning a rising shape into a falling one is inversion (the contour is mirrored). Restating it in notes of double the length is augmentation. (Halving the lengths would be diminution.) Simple restatement of the unchanged motif is repetition.
Explain the coherence. All four statements derive from a single two-bar cell, so the passage is unified by motivic economy: the listener hears one idea explored, not a string of unrelated tunes. The rising sequence builds momentum; the inversion provides contrast while keeping the same intervals; and the augmentation broadens the idea at the climax, giving a sense of arrival. Coherence comes from varied repetition of one motif rather than constant new material.
Markers reward correct naming of sequence, inversion and augmentation (and the contrast with diminution), and the explanation that developing one motif unifies the melody. The strongest answers note how the devices are placed to shape momentum and climax, not merely listed.
Original12 marksExplain how to write an effective melody and how to set words to it well. Refer to contour, phrasing and cadence, motivic development, and the treatment of text, with examples from music you have studied.Show worked answer →
Cover melody. An effective melody has a clear contour with a single main climax (often a high point placed late), is built from balanced phrases (commonly antecedent and consequent, four plus four bars) shaped by cadences, mixes stepwise motion with a few well-placed leaps (leaps usually filled in or followed by stepwise recovery), and stays within a singable range. Motivic development unifies it: repetition, sequence, inversion, augmentation and diminution let one small cell generate a whole paragraph.
Cover word-setting. Match musical stress to word stress (strong syllables on strong beats and higher or longer notes). Choose syllabic setting (one note per syllable) for clarity and narrative, or melismatic setting (many notes per syllable) for expressive or florid effect. Use word-painting where apt (a rising line on an upward word, a dissonance on a painful word). Place breaths and cadences at punctuation.
Use examples. Folk and hymn tunes for clear contour and phrasing; Schubert's songs for sensitive word-setting; Baroque arias for melisma and word-painting.
Evaluate. Markers reward the principles of contour, phrasing, cadence and motivic economy, the syllabic-melismatic distinction and stress matching, and located examples. The strongest answers integrate the two, showing how a melodic shape can be designed to fit and illuminate a text.
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