Music and Maths/(音乐与数学) -> #2of3 Intermediate/(中级) -> Discovering Music All Around Us/(音乐就在我们身边) -> Learn/(学习)

Music and Maths/(音乐与数学) -> Theory/(理论) -> Step 2 High School/(第二步高中) -> Years Group/(年级群)

Music and Maths/(音乐与数学) -> Discovering Music All Around Us/(音乐就在我们身边) -> #2of3 Intermediate/(中级) -> #[Tier 6] Pedagogical Aspects for Children/([第六]教育层为儿童) -> Users Group/(用户群)