Beethoven’s piano music is good, it can concentrate the mind, and can also cure insomnia

Also, I recommend you to listen to "Ethereal and Romantic Bandari", it is very soothing and can relieve Mental stress, improve memory.

There is also a very professional high-efficiency memory music called "Rozanov's High-efficiency Memory Music". The frequency of this music is consistent with the human body's alpha brain waves, which can put the brain in a relaxed and active state. The body and mind work in harmony, and in particular it opens access to super-memory emotions – the brain’s limbic system.

Try it, I hope it will improve your memory!

I am studying music, and I have also tried this kind of music, and it is very good!

Some audio and video stores sell it, and you can also download it online, such as Baidu!