Very often our marriage can be the tailor-made cross that we carry to crucify our own flesh, in some ways at least. Your title here hints that maybe you are wondering if your wife needs to submit to you on the issue of the music that she listens to.......and/or maybe you are wondering if submission means that a husband is supposed to lord it over his wife. It can be hard to know sometimes where to draw the line between leading by example and word, or at one extreme, micro-managing and controlling the life of another. The truth is, a person can only grow and be conformed to the image and likeness of Christ by their own free will. It sounds like she is either not saved or is just not mature in the Lord.......or maybe she likes the music because of a nostalgic connection, it reminds her of her youth, or a particularly happy period of her life, maybe it was even an escape from trauma or sadness in her home life, etc. If so it might be helpful for prayer, to understand if there is some particular reason why she likes that music. As priest in the home, you can love your wife sacrificially, as this is how Christ loved the church.......be long suffering but lead by example, wash her with the washing of the word, and intercede for her, and give her time to grow. And see if maybe there are some areas where you need to grow as well, knowing that you both are humbly growing together. I think the hardest thing about married life is learning not to make it about me and my needs but about the other's.....selfishness and self interest can take a long time to die out. All the best to you both.....and keep seeking the Lord.
Heleadethme's post in Marriage and submission was marked as the answer