I've been volunteering my poster designs to a local non-profit for about 3 years now. Gopherwood Concerts is a local to Cadillac organization that for 35 years now, has brought awesome musical acts to our quiet town. 

Marketing for a music festival is a huge ongoing task. Having been to a few and done marketing once or twice for a festival or other events like this, I am writing this guide as an educational piece for anyone crazy enough to get involved with a music festival.