aiyah, tera, not again another discussion on piracy!!! We've been there before in SOFT! It didn't turn out good at all. Do know that there are people here who use only original stuffs, not because they are rich (many are NOT), but because of principles. I better not say more - just do a search!
As for sharing music, it's one thing to just "share your music". There's another way to "share" it the "friendly way": somebody takes a chunk of music off your own composition, change it a little, give it another name, and puts his name as the composer, then sell it as his own music. That's also "frendly" sharing. Or, somebody takes your music without even editing, and uses it wherever he likes, and uses his name as the composer. We composers are very wary of this kind of "sharing", and that's why we protect our own songs with copyright. Not that we want to earn royalties, but we want to protect what belongs to us. So I would think composers of all people should understand this concept and hold on to this principle.