David Kunian, Music Curator of the New Orleans Jazz Museum at the Old U.S. Mint, places a Billie and DeDe Pierce 45-rpm record circa 1978 on a tall stack of silver shelving. Occupying the same shelves in the Mint’s “Jazz Tower” archival storage area are a tambourine, hand-painted by Charmaine Neville, an Ella Fitzgerald and Louis Armstrong 78-rpm record whose Decca label reads “The Frim Fram Sauce” on one side and Helen Gi...