Echo/(回声) -> Sound Shaping/(声音塑形) -> Sound Production and Manipulation [SPM]/(制作与处理)

Echo/(回声) -> Effect/(效果) -> Technique/(技能) -> Step 2 High School/(第二步高中) -> Years Group/(年级群)

Echo/(回声) -> Effect/(效果) -> #[Tier 5] Basic Tools for Production/([第五]基础工具层为制作) -> Users Group/(用户群)