According to the regulations of the Shanghai Conservatory of Music, you need to obtain a music theory certificate first to pass the tenth-level piano exam. Therefore, if you do not have a music theory certificate, you need to pass the music theory exam and obtain the corresponding certificate before you are eligible to take the Level 10 piano exam.

As for whether it is possible to take the music theory test after the piano test in August, this needs to be determined on a case-by-case basis. Generally speaking, the time for music theory examinations is relatively flexible, and appointments can be made according to personal circumstances. If you have arranged to take the piano test in August, you can arrange the music theory test before or after the test. You can consult the school or examination center for the specific time.

It should be noted that the music theory exam is also difficult. It is recommended that while preparing for the piano exam, you should also study music theory knowledge seriously and make adequate preparations and exercises.