Duplicate songs on iPhone

My iPhone has duplicate songs in most of the artists and albums. Yet, when I bring it up in iTunes from my PC, those duplicates are not there. I've re-synced the phone numerous times and the problem gets worse, not better.

I've also tried using Panphone. It also can't find the duplicates.

And I've attempted to use AnyTrans to copy with avoid duplicates checked, then recopy back to the phone. It errors out and I was forced to resync, creating 3 copies of some songs on the iPhone. This occurs on my iPhone XS, but more on my wife's iPhone 12 Pro.

Thank you for any suggestions,

Paul