How the film came into being was described in the July 1937 edition of Melody News:
Last month, a crew of cameramen, electricians and technicians from the Paramount film company set up their paraphernalia in the recording studios of Master Records, Inc. for the purpose of gathering ‘location’ scenes for a movie short, now in production, showing how phonograph records are produced and manufactured. Duke Ellington and his orchestra was employed for the studio scenes, with Ivie Anderson doing the vocals.
Narrated by Alois Havrilla, a pioneer radio announcer, the film shows you how records were actually recorded, plated and pressed. It’s a great relic from the vinyl era, which you will want to couple with this 1956 vinyl tutorial from RCA Victor.
Via Open Culture