Capturing and Reproducing Sounds/(捕捉与重现声音) -> Beginner/(初学) -> The Science of Sounds/(声音的科学) -> Learn/(学习)

Capturing and Reproducing Sounds/(捕捉与重现声音) -> Theory/(理论) -> Step 1 Middle School/(第一步初中) -> Years Group/(年级群)

Capturing and Reproducing Sounds/(捕捉与重现声音) -> The Science of Sounds/(声音的科学) -> Beginner/(初学) -> Tier 6 Items Related to Music Education for Children/(第六层音乐教育项目与儿童相关) -> Users Group/(用户群)