REad the lawsuit, or this summary is also good: http://www.ipwatchdog.com/2014/08/05/happy-birthday-to-you-c...
It's too complex to explain in a comment, plus it's late.
It's too complex to explain in a comment, plus it's late.
That's why I referred you to external sources for the lawsuit, because I don't want to make definitive comments about the legal merits of either side's case in this thread - it's been a few months since I even looked through the complaint.