Nat 4Nat 5HigherAdvanced Higher
Expansion
Expansion increases dynamic contrast by making quieter parts quieter in relation to louder parts.
Level relevance: introduced at Nat 4; tagged for every later level where the same concept remains useful.
Explanation
Expansion is related to compression but works in the opposite direction. It can be used to reduce low-level spill or noise, although settings need care to avoid unnatural changes in the sound.
Topics
DynamicsProcessingMixing
Curriculum statusofficial concept
Review statusdraft
Sources
- National 5 Music Technology course specification, May 2023, version 3.0 · accessed 2026-07-08
Used for the National 3, National 4, and National 5 technology and music concept tables.