It only takes one or two weeks to prepare for the Yangyin Elementary Music Theory Examination. According to the relevant information, you can enter the operating system of the Central Audio and Video Grading APP, and you can participate in the off-campus music level grading of the Central Conservatory of Music. From registration and login to registration and examination, as long as the video played is uploaded smoothly, the senior professional examiner of the Central Conservatory of Music will give you professional judgment and authoritative guidance.