While we are always touting our accuracy and have full faith in the competent audio fingerprinting technology we use, we know all too well, that TuneUp isn’t perfect. And sometimes, when cleaning up your music collection, you just click “Save” and put your trust in us to properly fix that bad tag. 
And in the (rare) cases that TuneUp mislabels an entire album of Beastie Boys B-sides to Barry Manilow’s Greatest Hits - don’t fret! We developed a very easy way to “Undo” the incorrect cleans that we make.
Simply go to the Clean tab and click on the arching arrow. As you can see, the tab will become an “Undo” drop-box. Now, take any of the Tune’dUp tracks that you want to unclean and drop them in (very much like our Clean feature). 
You will see the list of tracks, with their associated album and genre tag, come up. Simply click “Undo All” to revert all the tracks back to their original metadata in your library.
Note: Unfortunately, TuneUp cannot over-write the album art that was put into these albums, so if that too was incorrect, you may want to create a playlist before ‘Undo’ing just so you can go back to make any changes you’d like.
Whew. See! Wasn’t that easy?