Reactor wrote:I don't get it...aren't companies after piracy and plagiarism? A remix or cover is neither...
Correct. But you are missing something important here:
Record companies are the most rabid pursuers of copyright infringement. But as things are they rarely own the rights to the composition. They only own the right to the
recording.
So, they cannot do ANYTHING when you cover a song they happen to distribute. The composer/publisher of the song, on the other hand, could, but there's various means in place to ensure that they still get their money so they normally do not feel the need to go after you.
In Germany, there's
GEMA, for example, and other countries have similar institutions - and you can be certain that sites like Youtube have to pay quite a bit of money to them to cover this kind of use of music.