The term “weekend warrior” could as easily apply to wannabe rockers as it does to those who speed across the summer lakes—both have day jobs but live for their passions.  And being a so-called “rock god” is the aspiration of a great many, but the statistics are punishing: no matter how good you are, how many hours you devote to music, there are only so many spots at the top, with luck unfairly favoring some and not others. The answer to this unfairness