So you’re either renaming the artist zzzzzzz or the song? Either way I don’t see why you would want that or to even seperate RB3 version songs. Why not just get rid of the non RB3 versions and remove the (RB3 Version) line from the song’s name to just have one version?
You are about to leave Rhythm Gaming World and access the external songs DB. While no song or file sold for commercially available videogames is hosted there and only fan generated content is allowed, Rhythm Gaming World has no direct control over the database and no files are hosted here. Alright, we had to made you aware of this, now you can visit the database!