Tune Sweeper - Show duplicates in your Music library. Automatically select which duplicates to keep and delete based on your preferences. Remove duplicates with one-click from your iTunes or Music app library.
Duplicate Media Finder - Duplicate Media Finder locates and deletes identical files and similar media
Song Sergeant - Song Sergeant intelligently identifies and removes duplicates, renames inconsistently named artists...
Duplicate Music Remover Free - Duplicate Music Remover Free - a program to find and remove duplicate music.
SongGenie - SongGenie analyzes, identifies and repairs your mp3 tags and names.
MP3 Duplicate Finder - Program that finds duplicate MP3s using accoustic