As both a college student in BNA and now having to travel there for work, I can tell you that things are blocked in advance for performers and entourages. But based on your status, you may be able to force a reservation (HHonors Diamond Force). This past CMA Fest I waited to book travel for Nashville and everything was sold out. I called the hotel directly (the Hilton downtown and the HGI Vanderbilt) and got put on waitlists. I ended up using the diamond force at the Hilton Suites Brentwood because it was $319 a night versus $500 downtown. I'd checked early and often, and call just to double confirm if you want to use points.