This is because you are confused and nervous. This is normal. Don’t be anxious and try to adjust yourself. Having music in your head during exams seems to be a symptom of memory disorder.

This seems to be a manifestation of memory disorder. During the exam, you should concentrate on reading the test paper and answering relevant questions, but this involuntary situation is abnormal and lack of concentration. Yes In this way, a normal person's recall of memory will be activated only when the memory is mobilized, or the recall function will be automatically activated when he is clean. If it is unconscious, he will always recall a certain aspect.

Or if you can't let go of a certain fragment, it means that the memory function is disordered or disordered. I suggest you learn to let go of the memory, at least not to worry about the nerves and fatigue. Generally speaking, as long as you feel bored listening to the song , or being able to put it down without having time to listen is a normal thinking function.

The reason for this situation may be that you have been listening to music non-stop in the recent period (such as when reviewing for an exam), so that when you calm down, there will be an endless loop in your mind. The solution to playing music is to stop listening to music in the near future or to listen to a different song. This is caused by the brain entering a state of tension, caused by over-tension of the nerves. You can relax, such as taking a deep breath.