Normally you just register your stuff by sending a tape or notes or a midifile from your compositions to the facility that is dealing with this stuff in yer country (for germany and austria its the GEMA and the AKM)
Now if someone plays your stuff live (cover) or on radio, he has to pay a fee for it. If someone covers you, he also pays a fee for it. if someone takes only several riffs from you he is free to do so. as far as i know this is regulated by the number of identical bars. If a song has more than X identical bars with another registered song, then it is considered as a cover and you have to pay for it.
[FONT=Times New Roman]Holiness is in right action and courage on behalf of those who cannot defend themselves. What you decide to do every day makes you a good person... or not.[/FONT][br][br]