When Moses Asch founded Folkways Records in 1948, he set out to create a repository of all the sounds of the world—folk music and protest music and indigenous music and jazz, but also sounds of the office, of the junkyard, of the bottle-nose dolphin. “I decided that I would become like an encyclopedia,” he declared. “You don’t eliminate ‘A’ because nobody buys ‘A,’ but keep ‘B’ because ‘B’ is popular.” Asch promised that not a single title would go out of print, an offer that attracted educators, scientists, and activists who prized longevity above mass appeal. The result is one of the most remarkable audio archives ever created: Across 40 years, Asch released nearly 2,200 albums, an average of one per week. After his death in 1986, the Smithsonian Institution acquired the Folkways archive and stored it in a climate-controlled fireproof vault. Any title can now be replicated on demand by a CD-producing “Moe-bot,” an ultra-modern solution that realizes Asch’s promise beyond his wildest imaginings.