A high-level 形（曲）式 of 分析 that goes beyond the 一般 description of the 特征 of a 作品 of 樂/乐 结构 分析 identifies both 细节 at 微观层 as well as larger-scale 活动 In this way the 发展 of smaller 元素 into larger units and their 演变 throughout a 作品 can be identified