There’s a lot of commonality between business advice for artists and startup advice.  In a recent post, Paul Graham (@paulg) writes about doing things that don’t scale.  Near the top of the post, he talks about compound growth:  

“If you have 100 users, you need to get 10 more next week to grow 10% a week. And while 110 may not seem much better than 100, if you keep growing at 10% a week you'll be surprised how big the numbers get. After a year you'll have 14,000 users, and after 2 years you'll have 2 million.”

You don’t need to hit home runs.  10% weekly growth will get you where you need to go.