User blog:Anon3610/Song Project Leaders, Please Read: Song and Album Credits

So, we know that the artists of songs of of S1-4 was Cartoon Family. Looking back at the credits for the seasons, I found some information which I think are publishers: Warner Chappell Music Italians S.R.L. (research confirms it is a publisher), Ninap S.R.L. (Which Ben found to be a label due to a previous webpage concerning Magiche Canzoni!), and Tridemensional S.R.L., who still publishes Winx songs today. So, my question is, do we add this info to every song/album article?