I have been watching the progress of the Tailgate Beer Tasting Room and it appears that they are ready to go. Not only will they have their own beers on tap, they have several local and regional beers as well. About 20 taps in all. It's definitely worth your time to check it out.
They will be open 12-11pm. There will be brewery tours throughout the day, along with performance from local artists. Sadly I have to work, but I may be able to swing by later in the evening.
Address is 7300 Charlotte Pike, Nashville Tennessee 37209.