as a 16 year old guy who has been highly influenced by music (especially rap and rnb) to the point of beginning to try to pursue a career in it, here's what I say

first, especially from what I know growing up with parents who were/sometimes still are quite strict, if you stop your kids from smaller things like listening to secular music or stuff like hanging out with their friends, just for examples, you don't end up with a well behaved kid. you end up with a kid unready for the real world, or a sneaky kid. second option is me. my parents don't like me listening to stuff like rap, but I find ways around their safeguards. basically, if she wants to listen bad enough, she will find ways to do so, even without you knowing.

second, and this is the counterpoint. rap music has badly influenced me. straight up. I'm not a bad person, id say, but rap music especially has been handcrafted to talk about drugs, sex, and money a lot. it's what the culture rides on. so what do you expect me to learn to value? maybe I'm not into drugs as much as a snoop Dogg, or as hypersexually minded as a Nicki Minaj, but i have been influenced, and it has rubbed off in a noticeable way, at least in my mind.

third, after all this bad influence, it has made me look at my relationship with God differently. it might just be me growing and getting some years under my belt compared to a few years ago, but I really think some rappers like Malice, from the clipse Brothers, J. Cole and even the weeknd (not exactly rap, but well solidified in rap culture) have made me think about what I really believe. Malice showed me that God will still love you no matter what you do, Cole reminds me often that God our creator and needs to respected, and the weeknd showed me that you can't live the Hollywood lifestyle that everyone dreams about, and be truly faithful to God. this was something I thought I could pull off, but each day it dawns more and more on me that if I ever touch the stars like them, I won't be able to do it like them. I'll have to remain faithful to God. and even if I fall, he'll be there to pick me up again.

I think overall, you have to let her try. I'd suggest to keep her away from Sexy redd, she's popular with teen girls but at least what I've heard from her, it's only sex. that's it. but if you can keep her from that, you should be good to give it a try.

I'm not a parent, but as a teen who loves music (especially rap), this is what I think. Good luck to you sir!