Brandon, @mamadini, and I go down the external consciousness manipulation rabbit hole.
I incorrectly called Edward Bernays, William Bernays. He is the father of modern subliminal advertising and much, much, more. Here's more information on him:
https://en.wikipedia.org/wiki/Edward_Bernays
V2K/MK US Patent #4,877,027 "HEARING SYSTEM":
https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US4877027.pdf
Batband:
https://batband.com/
A Fishful of Dollars (Futurama S01E06):
https://en.wikipedia.org/wiki/A_Fishful_of_Dollars and clip 
The Alchemist by H.P. Lovecraft:
http://www.hplovecraft.com/writings/fiction/a.aspx
SecondLife:
http://secondlife.com/