What is the difference between emailing a midi file or style-for free to someone, or playing on the actual keyboard you own the midi, or style for a fee in public. If the file is truly copywrighted, and you didn't pay the royalties to the author-you both are breaking the law right? I think if a file is free to play in public-royalty free it is free to trade, and if it isn't free to play in public royalty free, than you can't trade it either. How many arranger keyboard performers actually seek out the royalty companies to make sure they are paying the correct fees? I bet not even half of them.