Music Made of Sounds/(音乐是声音做的) -> #1of3 Beginner/(初学) -> Discovering Music All Around Us/(音乐就在我们身边) -> Learn/(学习)

Music Made of Sounds/(音乐是声音做的) -> Theory/(理论) -> Step 1 Middle School/(第一步初中) -> Years Group/(年级群)

Music Made of Sounds/(音乐是声音做的) -> Discovering Music All Around Us/(音乐就在我们身边) -> #1of3 Beginner/(初学) -> #[Tier 6] Pedagogical Aspects for Children/([第六]教育层为儿童) -> Users Group/(用户群)