Comment Re:As a musician (Score 1) 160
That is mostly due to those agencies assuming that any performance of "their" song is their performance. If you don't use a copyrighted, recorded instance of a work, then they can't claim copyright. If you buy sheet music, you can't be hit for copyright infringement when you play that music, only if you copy the actual writing on the sheet music and distribute it. If you sing, and they can claim copyright infringement, then you can also claim the same thing every time they speak, since there's just so many words that can be strung together to convey certain meanings. Ask them how they plan to explain, to a jury, that their copyrighted, recorded version is in every way identical to your performance, and that you are copying and distributing their work. Unless they can prove that you didn't actually perform that piece (as in, you just stood on stage and played the copyrighted track instead of singing yourself), they have no claim.
Copyright law prevents the copying and distribution of an instance of a work, not every piece of work that is merely similar. As a musician/singer/songwriter/writer/artist every performance you do is also copyrighted, automatically, and without exception. Every sentence, page, chapter, and book that is written in the US is copyrighted by default, and automatically protected under copyright law. Anything presented to a public forum is assumed "published" and therefore is automatically subject to copyright law. Any time you just hum a random tune, your performance is protected under copyright law. If you're in the habit of giving impromptu speeches to random people on the street, each speech is automatically considered a performance and is, therefore, protected under copyright law.
So, to avoid certain songs while performing on stage is exactly what they want you to think is infringement, and just like "downloading is theft," that thought needs to die a quick and painful death.