Even if it was a difficult operation to copy a song, it only takes one person to do it. After that the spread of the song via the Internet or other means of propagation is only limited by the honesty of the users.
“I wouldn't say I'm a very controlling person. For instance, when I talk to the actors, I don't tell them exactly what I want because I want them to surprise me. I even encourage them to change some of the verses of the script if they need to.”
“The monopoly of science in the realm of knowledge explains why evolutionary biologists do not find it meaningful to address the question whether the Darwinian theory is true.”