The first is to ensure a good music class, so that the teacher will not have the slightest bad impression on you. Pay attention to her class in class. If she is a beauty, even if you admire her, as long as you don't make trouble. ...
The second is to ask her questions after class, ask some qualified questions, make her think you are smart and appreciate you, so that you will have a better chance to get close to her.
If she has a good attitude and smiles at you all the time after the second part, it means that you are half successful. The next step is to turn the boring questions into easy topics and further close the relationship.
See, hehe, I am more experienced.