Definition
Algorithmic composition treats musical structure as something that can be generated, transformed or organized by a procedure. The procedure may be mathematical, stochastic, rule-based, symbolic, computational or hybrid.
Scope
The concept includes historical formal systems, computer-assisted composition, generative sequencing, stochastic music, live coding, procedural rhythm, algorithmic harmony and systems that transform audio or symbolic material.
Applications
Electronic Artefacts uses the concept to connect ORETH, generative systems, machine listening and audio-memory research. It is useful whenever a musical process is best understood through rules and constraints rather than a fixed score alone.
Limitations
An algorithm does not guarantee musical value. Algorithmic composition still depends on material selection, listening, tuning, rejection and cultural interpretation.
References
See Iannis Xenakis, cybernetics, generative systems and the Electronic Artefacts ORETH program.