Four Industries is a three-channel film where an all-female choir recites sounds associated with Cincinnati’s major industries of the late 19th and early 20th centuries: metal casting, meatpacking, printing, and woodworking. Filmed in a historic brewery in Over-the-Rhine, the resulting a cappella chorus is rhythmic and repetitive, recalling the pouring, pounding, cutting, and hammering associated with the manufacturing of goods. By using the human voice to emulate mechanized sounds, Candiani reminds us of the corporeal impact of labour—the bodies that were required to support the processing of raw materials during America’s Industrial Revolution. Four Industries examines the contradictions present in the rhetoric of progress that accompanied America’s industrial past; highlights women as a corrective to dominant historical narratives that excluded their role as factory workers; and suggests parallels with current struggles against gender inequality.