I used to not like classical music due to its close acquaintence with what I thought were band nerds. Of course I listened to Green Day in those days. I really didn't have appreciation for good music at 12-14. But by my late teens, I really started getting into it. Yngwie Malmsteen definitely intrigued me with his interesting scale selections on his early albums of the 80's In particular, Rising Force. Then, I heard Vivaldi and Paganini. There is still some classical music I don't like. But I've learned to concentrate on the stuff I like.