I'm learning how to produce music, specifically hip hop, right now I'm using logic. I was wondering is there a basic format to a hip hop track? Like would you start with a drum pattern then add a baseline, etc. Also, I how would you incorprate strings or horns into a beat? My final question is how do you sample vocals from a song? I heard that you have to change songs from mpg format to .wav, how would you do that?