Omission, the dean is not present. According to the official website of China Conservatory of Music.

1. Occasionally, the China Conservatory of Music’s grading certificate does not have the signature of the dean. The reason is that there are omissions. The China Conservatory of Music issues a large number of social grading certificates, and occasionally omissions occur. Please contact the school to make up for it. Just sign.

2. If the dean is not present, the certificate cannot be signed on-site. You can find the principal through the school and make a supplementary signature.