摘要: Some problems on Algorithmic Composition are discussed, and a survey for series of key techniques used in this approach is made, which include Markov chains, stochastic process, musical knowledge based system, grammar, artificial neural networks, genetic algorithms. The conclusion that the development music composition system should involve combination existing technologies, i.e. Hybrid System development. In order to make become more practical effective, there be some flexible human intervenient ways different level system.