- Must have 3 or more sound parts:
- Harmony parts e.g. soprano, alto, bass.
- or "sound threads" - e.g. different instruments playing concurrently
- percussive voice is considerd as a sound part
- The instruments can be MIDI instruments or your own pd instruments.
- It must be a hybrid of at least two algorithms.
- It must contain some structural organization with at least two layers
- It must be expressive, using volume dynamics/articulation, etc.
- Length: 3 minutes