Experimental Music/(实验音乐) -> Genres and Categories [G&C]/(风格与流派)

Experimental Music/(实验音乐) -> #[Tier 2] Practical Aspects for Composers/([第二]实践层为曲作者) -> Users Group/(用户群)

Experimental Music/(实验音乐) -> Practise/(实践) -> Step 4 Postgraduate/(第四步研究生) -> Years Group/(年级群)