You want to give people a reason to buy your music none the less a reason to want to listen to you. Think of a artist you support do you share their stuff? Do you just listen to them and if you do do you pay for it? This is where giving people a reason to buy your stuff becomes important and makes a difference from just make stuff to giving them an incentive. Its not as simple as selling your music anymore but its more as people trying to pay for your life. Why should people do that? Thats what you need to figure out.