Double Tree is close and reasonable cost
21c Museum Hotel - walking distance even if you are not healthy ;) plus a contemporary art museum inside the hotel. Gray & Dudley is the restaurant - can't miss!
Hilton downtown .. 2 blocks from ryman
Omni if you want to be spoiled. Walking distance if you are healthy.
I stayed at the Hampton Suites and it was about 10 minutes walk from there and very centralized
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