Mid-Century modern to Disco:
“Once upon a time, when American industry ruled the earth, business and Broadway had a baby. This mutant offspring, glimpsed only at conventions and sales meetings, was the industrial musical. Think Broadway show, except the audience is managers and salesmen, and the songs are about how great it is to be working at the company.”
the author gives a good interview on Letterman:
from Everything’s Turning Up Profits: The Golden Age of Industrial Musicals | Dangerous Minds