Thank you for your time and have a great day. As I keep patrolling these bulbous files, I do not think that I have answered this and there is much that can be said. We are all in the dark when it comes to buying new clarinets, and as we improve it gets more complicated. Since I do not know if she studies, I will suggest that she does, and again if you have chosen well, that will answer a lot of the questions you have. The best student instruments cost about 4 to 800 dollars.
Serious students buy at a third off or more.
I have always had access to music stores and to people in the business who have something new or even more screwy than the next guy to attract. Yamaha has produced some lovely student wooden instruments and they have many models, and they are mostly good, the others, the French ones as they all are, are not as consistent, but the odd one will be better than the Japanese. It costs 5000, and the set costs 10. They are great. Really quite good.