There are millions of musicians who don't make their living playing their instruments. Many of these folks have an unbridled passion for music and performing, they just happen to do something else, but they are really musicians at their core. When the weekend rolls around, it is incredible how many of these teachers, doctors, lawyers, civil servants, plug in or climb behind the drum kit and launch into their favorite songs in a venue near you. We call those musicians weekend warriors. The goal h...