Composition: Craft, Structure and Notation
What you must know
Composition tasks require you to demonstrate control of musical elements in service of a stated intent. You must understand: motivic development (repetition, sequence, inversion, augmentation, diminution, fragmentation); phrase structure (antecedent–consequent, period, sentence); harmonic function and progression (tonal, modal, chromatic, extended and non-functional harmony); texture types (monophonic, homophonic, polyphonic, heterophonic); timbral and registral choices; rhythmic devices (ostinato, syncopation, cross-rhythm, metre change); and dynamic and articulative shaping.
You also need notation literacy: correct clefs, key and time signatures, beaming, ties, enharmonic spelling, transposing instruments, and idiomatic writing for the forces available. A composition that is unplayable or notated inconsistently loses marks regardless of its ideas.
Traps
- Intent mismatch. A question may ask how a device creates a specified mood or tension; answers that list devices without linking them to the intent miss the point.
- Development without unity. Contrast is rewarded only when a listener can hear the relationship between ideas; unrelated themes sound incoherent.
- Harmonic errors. Parallel fifths and octaves in a traditional style, unresolved dissonance, or a cadence that contradicts the established key are common faults.
- Notation slips. Wrong beaming across beats, missing accidentals in a new bar, or incorrect transposition.
Rule of thumb
Apply the intent–device–effect chain: state the intended effect, name the specific compositional device, then explain how the device produces that effect. If you cannot complete the third step, the device is decorative rather than functional.
Worked example
To build tension before a climax, a candidate might fragment the opening motif, sequence it upward by step, thin the texture to two voices, then re-enter tutti with the motif augmented and harmonised in the dominant. Each step should be named and linked to the accumulating tension rather than listed as a set of unrelated techniques.