摘要：算法作曲技术随着计算机辅助作曲方式的出现与发展，日益成为具有理性思维特点的作曲家所关注的焦点。20世纪70年代兴起于法国的频谱作曲学派属于算法作曲的范畴，但并非真正意义的算法作曲。真正意义的作曲算法是基于数理逻辑的，且多数是基于计算机编程方式而自动生成的。本文主要讨论了算法的基本含义，算法与作曲的映射关系，基于算法的频谱学派及其基本创作理念，以及OpenMusic作为一个开放性的拼图式算法作曲程序的基本结构、功能与意义。
　　图分类号：J611.1  文献标识码：A      DOI: 10.3969/j.issn1003-7721.2010.04.001
　　作者简介：吴粤北（1957-），男，文学博士，中央音乐学院现代电子音乐中心教授，博士生导师，中国电子音乐学会副会长（北京 100031）。
　　收稿时间：2010-04-20

On the Technique of Spectral Composition Based on Algorithm

WU Yue-bei

Abstract: Along with development of computer aided composition, the technique of algorithmic composition gradually caught attention of composers with rational thinking. The school of spectral composition sprang up in French in the 1970s, which was not the real meaning of algorithmic composition even if belongs to its category. The real significance of composition algorithm is based on the symbol logic, and most of them generated automatically according to the method of computer programming. The paper discussed the general meaning of algorithm, the mapping relation between the algorithm and composition, the school of spectral composition based on algorithm ant its basic creational ideas, and the OpenMusic, with its basic structure, function and significance as an openly algorithmic composition programming of jigsaw.
Key Words: computer music, algorithmic composition, schools of spectral, composition technique, OpenMusic