CURTIS8516: Mall Music Muzak - Mall Of 1974

Today's weird Internet find: 38 minutes of actual 1970's shopping mall muzak, rescued from videos, records and Spiro Agnew's cassette collection.

link to the Internet Archive

This might be the best: The Fountain of Life overflows with reverb,  Fascinatingly decrepit and flatulent.  Kind of like the 70's.