Picture a singer, homeless trying to get noticed in a Subway or train station
I have one thing to point out though. Imagine this incredible singer kept singing two weeks in the subway and merely got 0.01 cent for it. Then two weeks later, an amazing crowd found her and 0.01 cent again.
Over time her audience may grow but will they be able to donate to her older appearances at that same location weeks ago? Nope, those are done with.
It is only natural that people test the waters with singing 10 second songs first and then jump in and go full time if it works out.
As of now singers have to constantly bellow out new songs of various quality because they only have a limited time to get noticed or get donations on the street. It's alright for news and terrible for other forms of media.
There's one flaw with this example though: the singer can sing the same song every day over and over again because in the streets it isn't called spamming, the streets don't keep history of your repertory.