IME and IMHO, Nashville is no good for musicians who aren't already well connected with a good gig. I'm from Memphis and I go to school Knoxville, so I've been to Nashville quite a few times with several of my bands over the years. For one, unless you're someone reputable, or unless you have 'the in' with another killer band, you're going to be stuck playing the bad nights of a week. Even then, your band will still be competing with at least a dozen other killer acts playing other venues across the city, so, you're already screwed no matter what. In addition, most original gigs there simply don't pay or they pay very little. Maybe I'm jaded from my own experiences, but even music friends of mine from Nashville tell me to stay away unless you have some serious country chops and happen to know the right people.
So what do I suggest? Consider moving to Knoxville or Chattanooga. Both cities are having a huge music revival in them that wasn't going on even a decade ago. Both have venues that cater towards originals acts and will pay you decently even on an off night. In addition, these cities both have very supportive local audiences who actively seek out bands. To say the least, I often find myself in awe at how well I have it in comparison to other TB members in original bands who are based out of other cities. I get paid well, never have to worry about having a PA, and the crowds are darn near close to being completely built in. Plus their location is close to other major cities (Nashville, Memphis, Atlanta, Asheville, the Tri Cities, Athens, etc...), and the cost of living is relatively cheap. You can't ask for a better setup.
Yep.
My twin brother lives in Memphis. He and I started bands in our respective cities at the same time. Being objective, are bands are of equal quality, and play roughly the same material. His band is playing 4 times a month making a minimum of $500 a night. On the other hand, I struggle to book my band twice a month, and usually have to play for door or a $250 minimum.