樂/乐 作曲 is a 复杂 过程 合并 几个 离散 活动 传统 学科 such as 和谐 对位 and orchestration have been regarded as 清晰（独特） though 相关 areas Furthermore each is characterised by a priori 系统 of 格物/分类法 and 组织 However in the 环境 of the 電聲學/电声学 工作室 such 系统 are 经常 entirely inappropriate and the 作曲家 appears to be confronted with repertories of 声 and 技术 缺乏 both order and clarity 皮埃尔 Schaeffer's Programme de la Recherche Musicale or PROGREMU is a 响应/反应 to this situation PROGREMU consists of five interdependent stages by which 樂/乐 作曲 mediated by 技术 can be approached systematically 录制 声波 对象 are classified and 描述 according to their 感知（认为） features These procedures facilitate the grouping of 声波 对象 and potentially the promotion of any characteristic to the role of a principal articulator of 结构 Separate 活动 can therefore still be identified However the 電聲學/电声学 媒介 促进（鼓励） a reassessment of their 功能（函数） and 关系 Consequently PROGREMU elaborates rather than rejects already systematised 传统 活动

PROGREMU comprises a 系统 of five interdependent stages 类型学 形态学 性格学 分析 and 合成 By 中项 of 类型学 and 形态学 声波 对象 are isolated from their 语义（上下文） classified and 描述 These are the most detailed taxonomic stages of the programme Thereafter according to 性格学 声 can be grouped in 风格 and by 分析 their 潜力 for 樂/乐 结构 can be assessed With this 信息 the 作曲家 can 合成 new 声波 对象 Each stage has a 特定 功能（函数） but is subservient to the ultimate aim - 樂/乐 作曲 源 - John Dack Systematising the Unsystematic - Paper presented at the 艺术 Symposium of the International Conference for 深入 研究 in 系统 研究 and 控制论 Baden-Baden Germany August 1999