Design of a printed backdrop starts by identifying a goal or desired end result. Depending on your needs and personal taste, this can take on many different forms. The process can start with a cocktail napkin sketch and a few key words that describe look and feel or, it can be a taken from existing brand pieces such as printed collateral, new CD artwork, your web site or whatever brings you inspiration. The key is in translating that vision into a grand format that sets the tone you are looking for. 
Literal translations can work. Sometimes they don’t. That’s when its time to start thinking design.