Guest post by David Deal (@DavidJDeal) author of the new [free] ebook, “The New Music Moguls“ How do you succeed in an industry that faces constant disruption? The music industry has been asking itself this question ever since Napster crashed the party. As it turns out, elite musicians such as Rihanna and Taylor Swift, who routinely earn millions year after year, have been providing answers all along. They write their own rules for success, including a willingness to use their music as…