Music on iTunes Store without Owning Copyrights: A Follow-Up

Last week, we spoke about Jean-François Taillard, who had discovered that the iTunes Store was distributing one of his arrangements without his permission and in a clearly illegal manner.
It took a little while for him to completely understand the legal complications of the matter, and we are now going to sum it up for you.
He signed an agreement for the distribution of the song with the Aurophon company in 1995 for a duration of 10 years. For obscure, and difficult to describe, reasons, Aurophon changed its legal form and became Cascade Meridien.
This company has given the rights to X5 Music who believes (obviously in good faith) that it is authorized to sell it on the iTunes Store.
In summary, Aurophon or Cascade Meridien has given the rights that is no longer has, this transfer being two times illegal since they should have asked for authorization from the artist, which they did not do, and also because the contract has expired.
We have here a contract which has created quite a stir since the publication of our previous news has lead to threats of defamation lawsuits.
While waiting for the resolution, this illegally sold song is still available on the iTunes Store.