stopp being so worried about copyright laws...unless you're trying to protect YOUR shit from getting taken, don't even worry about any of that...artists know people are gonna use their instrumentals, even dipset uses other people's shit...i heard Dipset on "Pushin" before I even knew it was a Bun-B instrumental and I'm fairly sure they niether asked nor paisd him to get on that beat...and they sell millions of mixtapes and shit...don't fret about that shit just do ya thing man