Twenty years ago American folklorist and ethnomusicologist Alan Lomax designed "The Global Jukebox," a database that used descriptive tools to identify and link archival music and dance footage. The Global Jukebox was essentially Pandora — but conceived long before technology that could realize it existed. Ten years after his death, Lomax's dream may finally be realized: all of his recordings have been put online, but it will take at least another year to get his collection of dance film into the database.