Grain/(粒子) -> Sound Source/(声音源) -> Sound Production and Manipulation [SPM]/(制作与处理)

Grain/(粒子) -> Sound Source/(声音源) -> Classification of Sound/(声音分类) -> Musicology of Electroacoustic Music [MEM]/(电声音乐学)

Grain/(粒子) -> Micro-level Structure/(微观结构层) -> Structure, Musical [Str]/(音乐与结构)

Grain/(粒子) -> Micro-level Structure/(微观结构层) -> Tier 2 Practical Aspects Primarily for Composers/(第二层实践方面主要针对作曲家) -> Users Group/(用户群)