I didn't study for one single, solitary test in highschool. Only a complete fool would spend their time studying for schoolwork. It's easy enough as it is.

However, I 'study' music for about four hours every day, at least. I don't have any exams to pass, or any grades to earn. Studying is one of the greatest, most rewarding things on the face of this earth, so long as you aren't being forced to do it by some first year, second rate public school teacher.