Probably the worst album I had was a tie between Kiss and Alice cooper, although a girl friend I dated briefly talked me into buying an Elton John album (I didn’t tell my friends); yes, that was a pathetic purchase. After getting married, my wife (we met in a bar) found those records in the closet, and was surprised that I had those and a few other lame lps.
But, 4 yrs later, we both were born again, and the “old things are passed away, and all things become new”, literally got underway. One of the old things was music that didn’t glorify God. The rock, blues, jazz, and country music that didn’t promote a healthy and/or Godly life, were burned. No regrets
I went on a rant earlier this year after the massacre at an Arianna Grande concert in the U.K. My point wasn't that her lyrics and show are good - they're trash - but that we'd rather bash the entertainer than do the HARD work of parenting, of self-evaluation. Indeed, even on the topic of AC/DC, if a parent restricted his kids music collection to Gregoria's Chant, I may disagree with that choice (though I'd prefer Chant to Slayer) but I'd support their right to make that choice, and applaud their effort.
I would NEVER tell anyone what to do with their music (or book) collection. Indeed, you and your bride are to be commended for doing the hard work - of "removing the wooden beam" in your eye, so to speak. Hopefully, God has mercy on my soul if I am in error, for I haven't lit up the sky with my refuse.