Interdisciplinary Studies/(跨学科研究) -> Disciplines of Study [DoS]/(多学科研究)
Interdisciplinary Studies/(跨学科研究) -> #[Tier 1] Theoretical Aspects for Musicologists/([第一]理论层为乐学者) -> Users Group/(用户群)
Interdisciplinary Studies/(跨学科研究) -> Theory/(理论) -> Step 5 Doctoral/(第五步博士) -> Years Group/(年级群)