Aesthetics/(美学) -> Musicology of Electroacoustic Music [MEM]/(电声音乐学)Aesthetics/(美学) -> #[Tier 1] Theoretical Aspects for Musicologists/([第一]理论层为乐学者) -> Users Group/(用户群)Aesthetics/(美学) -> Theory/(理论) -> Step 5 Doctoral/(第五步博士) -> Years Group/(年级群)