I’m 99% sure that BJJ and Bnos Sarah/Chava don’t accept girls that listen to nonjewish music.
Maybe BJJ does, on second thought. I’ve heard that they focus more on intelligence than hashkafa when accepting girls. But def not Bnos S or C!
As for your point that being dressed b’tznius is more important than not listening to nonjewish music, I agree with you on that! But my question is- why not dress b’tznius AND stay away from nonjewish music?
Actually, that’s none of my business. Just something for you to think about. My point is that sems like BJJ and Bnos C or S are not looking for girls that listen to nonjewish music. They are looking for very yeshivish girls that are as sheltered and pure as possible. They want typical Bais Yaakpv girls that are considered top girls.
There is nothing wrong with you. You just wouldn’t do well in those sems, and I highly doubt that you’d get accepted, barring an absolute nes.