Hello, my 12 year old daughter has been playing alto sax in band for two years now, we borrowed it from my oldest sister who played when she was in school, it is a Buescher Aristocrat. I would like to purchase her own, but am stuck if I should get a student or a pro. I don't even know if what she currently is using is a student or a pro. What I've been reading is that a pro will sound better, and that if she continues to play eventually she will need that. Is a pro model more difficult to play? Forgive my ignorance on this.