Sure ID3 taggers aren’t a new sort of app or anything but they’re extremely useful and this guy made one that looks extremely beautiful and simple. Taggr, is the name and check out some of these screenshots you won’t be disappointed.
The app is currently in beta stage but I saw it and thought this guy needed some recognition. It’s a beautifully designed app and loaded with features as far as ID3 Tag Editors go. If you want to try it out and help him test it or just go let the guy know what you think you can head over to Reddit or his G+ page.