of course, most high schools will have students studying art. Those who study fine arts will basically leave school for one year. You just need to ask your parents to explain the situation to your class teacher, and ask the teacher to give the school a certificate that you have studied art and asked to keep your student status. But the tuition is to be paid. Personally, I suggest that you don't have to leave school so early. It's not good for you to review your cultural classes in the future. If you miss too many classes, you won't be able to keep up. You can set a fixed time to study music, and then take time off from school. It is suggested that it is more appropriate to leave school in the summer vacation when the third year of high school begins.