Archivist Wayne Moore leads the way down into the vault where the State of Tennessee stores its most valuable historical treasures.
"It's a temperature- and humidity-controlled area where we keep a lot of the recordings," he explains.
Hundreds of reel-to-reel audio tapes line these floor-to-ceiling shelves. Stacked atop each other, the recordings, photographs and lyric sheets in the collection would reach the height of a 14-story building. They were all assembled under the direction of novice folklorist and state park Ranger Bobby Fulcher.