IB Music SL study materials
IB Music SL study resources

IB Music SL: Creating: Composition or Arranging

IB Music SL · Work through your exam, one topic at a time.

All guide sections

Creating: Composition or Arranging

Creating asks you to compose or arrange a piece that realises a stated intention, submitted with a recording, a score or lead sheet, and a short written rationale. It is internally assessed and externally moderated. The examiner looks for craft: a clear idea, developed and scored idiomatically, not a loop repeated for three minutes.

Rules that shape the piece

  • State a intention: stimulus, intended performers, audience or occasion. The music must audibly fulfil it.
  • Develop material: sequence, inversion, augmentation, diminution, fragmentation, re-harmonisation, textural change.
  • Plan the structure and harmony before writing: a harmonic scheme, a rhythmic identity, a climax and a close.
  • Write idiomatically for the chosen forces; respect range, breathing, bowing and hand span.
  • Arranging means transformation - new instrumentation, metre, texture, harmony or style - with the source credited. A transcription is not an arrangement.
  • Notation: legible score with clefs, key and time signatures, tempo and dynamic markings. DAW-based work still needs a score and an audible balance between parts.

Worked example

A three-minute piano trio built on a four-note folk motif. Reasoning: the motif is stated by the violin, sequenced up a step by the piano, inverted in the cello, then augmented to close the work; harmony moves i–VI–III–VII, with the texture thinning at the climax so the final statement is bare. The rationale explains how this development embodies the intention of “transformation of a borrowed tune”, so the written statement and the recording agree.

Traps

  • A rationale claiming an intention the music does not deliver.
  • Ostinato repetition with no transformation.
  • Unplayable or unidiomatic writing for the forces.
  • A score with missing clefs, key signatures or performance directions.
  • A flat MIDI rendering with no dynamic shaping.
  • Submitting a transcription and calling it an arrangement.