The revelation came while hearing a background music version of Iron Butterfly’s “In A Gadda Da Vida” at a Mr. Steak restaurant in Colorado

I just read “Elevator Music: A Surreal History of Musak, Easy-Listening, and Other Moodsong,” written by Joseph Lanza and published in 1994, around the same time as V. Vale’s and Andrea Juno’s cult classic book, “Incredibly Strange Music.” Lanza’s book was witty, thought-provoking, and informative, and I liked it a lot. It reminds of the …